Note4Students
From UPSC perspective, the following things are important :
Prelims level: Solomon Islands
Mains level: NA
Australia has announced sending police, troops and diplomats to the Solomon Islands to help after anti-Government demonstrators.
Solomon Islands
- Solomon Islands is a sovereign country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and northwest of Vanuatu.
- Its capital, Honiara, is located on the largest island, Guadalcanal.
- The country takes its name from the Solomon Islands archipelago, which is a collection of Melanesian islands that also includes the North Solomon Islands (a part of Papua New Guinea).
- It excludes outlying islands, such as the Santa Cruz Islands and Rennell and Bellona.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Majuli Island
Mains level: Not Much
Soil erosion, coupled with changing climatic conditions, has been writing a cruel destiny for the inhabitants of Majuli in Assam, the largest river island in the world.
About Majuli Island
- Majuli is a riverine island in the Brahmaputra River, Assam and in 2016 it became the first island to be made a district in India.
- Majuli has shrunk as the river surrounding it has grown.
- It had an area of 880 square kilometers (340 sq mi) at the beginning of the 20th century but having lost significantly to erosion it covers 553 square kilometers as at 2014.
- It is the abode of the Assamese neo-Vaishnavite culture.
Its formation
- The island is formed by the Brahmaputra River in the south and the Kherkutia Xuti, an anabranch of the Brahmaputra, joined by the Subansiri River in the north.
- It was formed due to course changes by the river Brahmaputra and its tributaries, mainly the Lohit.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Mudumalai TR
Mains level: Not Much
P
PC: MapsOfIndia
A tiger believed to have been responsible for the death of two herders in the Mudumalai Tiger Reserve was finally captured.
Read all the tiger reserves in India through this map. Put more focus on South Indian states and the NE region.
Mudumalai Tiger Reserve
- Mudumalai National Park is a national park in the Nilgiri Mountains in Tamil Nadu.
- It is located in the Nilgiri District and shares boundaries with the states of Karnataka and Kerala.
- It is part of the Nilgiri Biosphere Reserve and was declared a tiger reserve in 2007.
- It harbours several endangered and vulnerable species including Bengal tiger, Indian leopard, Indian elephant and gaur.
Try this PYQ:
Q. Recently there was a proposal to translocate some of the lions from their natural habitat in Gujarat to which one of the following sites?
(a) Corbett National Park
(b) Kuno Palpur Wildlife Sanctuary
(c) Mudumalai Wildlife Sanctuary
(d) Sariska National Park
Post your answers here.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Jim Corbett NP
Mains level: Tiger Conservation
The Union Minister of State for Environment, Forest and Climate Change has recently proposed to change the name of Corbett National Park to Ramganga National Park.
Who was Jim Corbett?
- Born in Nainital in 1875, Edward James Corbett lived in India till Independence, after which he left for Kenya where he died in 1955.
- India’s best known hunter, Corbett earned fame after he tracked down and killed a number of man-eating tigers and leopards (he is said to have killed over a dozen).
- An ace shot, Corbett was called upon regularly by the government to track and shoot man-eaters in the villages of Garhwal and Kumaon in Uttarakhand.
Corbett National Park
- Jim Corbett National Park is a national park in India located in the Nainital district of Uttarakhand state.
- The first national park in India, it was established in 1936 during the British Raj and named Haily National Park after a governor of the United Provinces in which it was then located.
- It was renamed Ramganga National Park, named after the river that flows through it, shortly after Independence and was rechristened yet again as Corbett National Park in 1956.
- Jim Corbett had played a leading role in its establishment and had died the year before.
- The park was the first to come under the Project Tiger initiative.
The tiger reserve
- The national park along with the neighbouring 301-sq km-Sonanadi Wildlife Sanctuary together make the critical tiger habitat of the Corbett Tiger Reserve.
- With its hills, grasslands and streams, it is ideal tiger territory.
- The place from where Project Tiger was launched in 1973, with its tiger population at 163, it boasts of a single largest tiger population in a tiger reserve and one of the highest tiger densities in the country.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Bhoramdeo Tiger Reserves
Mains level: Not Much
The National Tiger Conservation Authority (NTCA) approved the Chhattisgarh government’s proposal to declare the combined areas of the Guru Ghasidas National Park and Tamor Pingla Wildlife Sanctuary as a Tiger Reserve.
Bhoramdeo Tiger Reserve
- The new Reserve is located in the northern part of the state, bordering Madhya Pradesh and Jharkhand.
- This will be the fourth Tiger Reserve in Chhattisgarh, after the Udanti-Sitanadi, Achanakmar, and Indravati Reserves.
- The proposal was considered under Section 38V(1) of The Wildlife (Protection) Act, 1972.
- This section says that the State Government shall, on the recommendation of the Tiger Conservation Authority, notify an area as a tiger reserve.
A decade in making
- The Tamor Pingla Wildlife Sanctuary was identified as part of the Sarguja Jashpur Elephant Reserve in 2011.
- The Guru Ghasidas National Park used to be part of the Sanjay National Park in undivided Madhya Pradesh.
- Both were identified as reserve forests, and had been in line to be notified as Tiger Reserve since 2011.
Medium-sized reserve
- The constituent units of the new Tiger Reserve, Guru Ghasidas National Park and Tamor Pingla Wildlife Sanctuary, are spread over 1,44,000 hectares (1,440 sq km) and 60,850 hectares (608.5 sq km) respectively.
- Guru Ghasidas National Park is in Koriya district; Tamor Pingla is in Surajpur district in the northwestern corner of Chhattisgarh.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Weddel Sea, Mapping of Southern Ocean
Mains level: NA
India has extended support for protecting the Antarctic environment and for co-sponsoring the proposal of the European Union for designating East Antarctica and the Weddell Sea as Marine Protected Areas (MPAs).
About Weddell Sea
- The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre.
- Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula.
- Much of the southern part of the sea is covered by a permanent, massive ice shelf field, the Filchner-Ronne Ice Shelf.
- The sea is contained within the two overlapping Antarctic territorial claims of Argentine Antarctica, the British Antarctic Territory, and also resides partially within the Antarctic Chilean Territory.
Major ice shelves
- Various ice shelves, including the Filchner-Ronne Ice Shelf, fringe the Weddell sea.
- Some of the ice shelves on the east side of the Antarctic Peninsula, which formerly covered roughly 10,000 square kilometres of the Weddell Sea, had completely disappeared by 2002.
- The Weddell Sea has been deemed by scientists to have the clearest water of any sea.
India’s support for the Antarctic
- India supports sustainability in protecting the Antarctic environment.
- The proposed MPAs are essential to regulate illegal unreported and unregulated fishing.
- India had urged the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) member countries to ensure Antarctic conservation.
- India remains associated with the formulation, adaptation and implementation mechanisms of these MPAs in future.
What is CCAMLR?
- CCAMLR is an international treaty to manage Antarctic fisheries to preserve species diversity and stability of the entire Antarctic marine ecosystem.
- CCAMLR came into force in April 1982.
- India has been a permanent member of the CCAMLR since 1986.
- Work pertaining to the CCAMLR is coordinated in India by the Ministry of Earth Sciences through its attached office, the Centre for Marine Living Resources and Ecology (CMLRE) in Kochi, Kerala.
Back2Basics: Marine Protected Areas (MPAs)
- An MPA is a marine protected area that provides protection for all or part of its natural resources.
- Certain activities within an MPA are limited or prohibited to meet specific conservation, habitat protection, ecosystem monitoring, or fisheries management objectives.
- MPAs can be conserved for a number of reasons including economic resources, biodiversity conservation, and species protection.
- They are created by delineating zones with permitted and non-permitted uses within that zone.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Zoji La Pass and other himalayan passes
Mains level: Critical border infrastructures
Union Minister for Road Transport and Highways has inspected the work on Zojila and Z Morh tunnels.
Zojila Tunnel
- The Zojila is set to be Asia’s longest bi-directional tunnel.
- It will connect Srinagar, Dras, Kargil and Leh via a tunnel through the famous Zojila Pass.
- Located at more than 11,500 feet above sea level, the all-weather Zojila tunnel will be 14.15 km long and ensure road connectivity even during winters.
- It will make the travel on the 434-km Srinagar-Kargil-Leh Section of NH-1 free from avalanches, enhance safety and reduce the travel time from more than 3 hours to just 15 minutes.
- The speed limit inside the tunnel is likely to be the same as in the Atal tunnel – 80 kmph.
Z-Morh tunnel
- The Z-Morh tunnel — being developed at Sonmarg — will provide it all-weather connectivity with Srinagar allowing it to remain open to tourists all year round.
- It is likely to be ready by December 2023 and is being developed at a cost of ₹2,378 crore.
Significance of these tunnels
- The project holds strategic significance as Zojila Pass is situated at an altitude of 11,578 feet on the Srinagar-Kargil-Leh National Highway and remains closed during winters due to heavy snowfall.
- At present, it is one of the most dangerous stretches in the world to drive a vehicle and this project is also geo-strategically sensitive.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Back2Basics: Major Passes in India
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: MMD Biosphere Reserve, BRs in India
Mains level: Not Much
UNESCO has designated Mura-Drava-Danube (MDD) as the world’s first ‘five-country biosphere reserve’.
About Mura-Drava-Danube BR
- The biosphere reserve covers 700 kilometres of the Mura, Drava and Danube rivers and stretches across Austria, Slovenia, Croatia, Hungary and Serbia.
- The total area of the reserve — a million hectares — in the so-called ‘Amazon of Europe’, makes it the largest riverine protected area on the continent.
- The reserve is home to floodplain forests, gravel and sand banks, river islands, oxbows and meadows.
- It is home to continental Europe’s highest density of breeding white-tailed eagle (more than 150 pairs), as well as endangered species such as the little tern, black stork, otters, beavers and sturgeons.
- It is also an important annual resting and feeding place for more than 250,000 migratory birds, according to WWF.
- Almost 900,000 people live in the biosphere reserve. (UPSC may ask if it is uninhabited.)
Significance of this BR
- The new reserve represented an important contribution to the European Green Deal and contributes to the implementation of the EU Biodiversity Strategy in the Mura-Drava-Danube region.
- The strategy’s aim is to revitalize 25,000 km of rivers and protect 30 per cent of the European Union’s land area by 2030.
- The declaration as BR puts river revitalization, sustainable business practices enhancing cross-border cooperation into focus.
Ignore at your own risk! Its better to correct it here itself.
Such PYQs are ought to repeat any number of times in UPSC CSE.
Q. Consider the following statements:
- The boundaries of a National Park are defined by legislation.
- A Biosphere Reserve is declared to conserve a few specific species of flora and fauna.
- In a Wildlife Sanctuary, limited biotic interference is permitted.
Which of the above statements is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Post your answers here.
Back2Basics: UNESCO Biosphere Reserves
- Biosphere reserves are ‘learning places for sustainable development’.
- They are nominated by national governments and remain under the sovereign jurisdiction of the states where they are located.
- They are designated under the intergovernmental MAB Programme by the Director-General of UNESCO following the decisions of the MAB International Coordinating Council (MAB ICC).
- Their status is internationally recognized. Member States can submit sites through the designation process.
- Biosphere reserves include terrestrial, marine and coastal ecosystems.
They integrate three main “functions”:
- Conservation of biodiversity and cultural diversity
- Economic development that is socio-culturally and environmentally sustainable
- Logistic support, underpinning development through research, monitoring, education and training
(a) Core Areas
It comprises a strictly protected zone that contributes to the conservation of landscapes, ecosystems, species and genetic variation
(b) Buffer Zones
It surrounds or adjoins the core area(s), and is used for activities compatible with sound ecological practices that can reinforce scientific research, monitoring, training and education.
(c) Transition Area
The transition area is where communities foster socio-culturally and ecologically sustainable economic and human activities.
UNESCO recognized BRs in India
Year of
recognition
|
Name
|
States
|
| 2000 |
Nilgiri Biosphere Reserve |
Tamil Nadu |
| 2001 |
Gulf of Mannar Biosphere Reserve |
Tamil Nadu |
| 2001 |
Sundarbans Biosphere Reserve |
West Bengal |
| 2004 |
Nanda Devi Biosphere Reserve |
Uttarakhand |
| 2009 |
Pachmarhi Biosphere Reserve |
Madhya Pradesh |
| 2009 |
Nokrek Biosphere Reserve |
Meghalaya |
| 2009 |
Simlipal Biosphere Reserve |
Odisha |
| 2012 |
Achanakmar-Amarkantak Biosphere Reserve |
Chhattisgarh |
| 2013 |
Great Nicobar Biosphere Reserve |
Great Nicobar |
| 2016 |
Agasthyamala Biosphere Reserve |
Kerala and Tamil Nadu |
| 2018 |
Kanchenjunga Biosphere Reserve |
Part of North and West Sikkim districts |
| 2020 |
Panna Biosphere Reserve |
Madhya Pradesh |
|
|
|
|
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Pilibhit Tiger Reserve
Mains level: Not Much
A herd of around 25 elephants from Nepal’s Shuklaphanta National Park reached the tiger reserve in Uttar Pradesh almost a month back.
Pilibhit Tiger Reserve
- Pilibhit Tiger Reserve is located in Pilibhit district of Uttar Pradesh and was notified as a tiger reserve in 2014.
- It is one of the few well-forested districts in Uttar Pradesh.
- It forms part of the Terai Arc Landscape in the upper Gangetic Plain along the India-Nepal border.
- The habitat is characterized by sal forests, tall grasslands and swamp maintained by periodic flooding from rivers.
- The Sharda Sagar Dam extending up to a length of 22 km is on the boundary of the reserve.
- The tiger reserve got the first international award TX2 for doubling the tiger population in a stipulated time.
Try answering this PYQ:
Q.Consider the following protected areas:
- Bandipur
- Bhitarkanika
- Manas
- Sunderbans
Which of the above are declared Tiger Reserves?
(a) 1 and 2 only
(b) 1, 3 and 4 only
(c) 2, 3 and 4 only
(d) 1, 2, 3 and 4
Post your answers here.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Thamirabarani Civilization
Mains level: Ancient Indian Civilizations
A carbon dating analysis of rice with soil, found in a burial urn at Sivakalai in Thoothukudi district of Tamil Nadu has yielded the date of 1155 BC, indicating that the Thamirabarani civilization dates back to 3,200 years.
About Thamirabarani River
- The Thamirabarani or Tamraparni or Porunai is a perennial river that originates from the Agastyarkoodam peak of the Pothigai hills of the Western Ghats.
- It flows through the Tirunelveli and Thoothukudi districts of the Tamil Nadu state of southern India into the Gulf of Mannar.
- It was called the Tamraparni River in the pre-classical period, a name it lent to the island of Sri Lanka.
- The old Tamil name of the river is Porunai.
Its history
- Its many name derivations of Tan Porunai include Tampraparani, Tamirabarni, Tamiravaruni.
- Tan Porunai nathi finds mention by classical Tamil poets in ancient Sangam Tamil literature Purananuru.
- Recognised as a holy river in Sanskrit literature Puranas, Mahabharata and Ramayana, the river was famed in the Early Pandyan Kingdom for its pearl and conch fisheries and trade.
- The movement of people, including the faithful, trade merchants and toddy tapers from Tamraparni river to northwestern Sri Lanka led to the shared appellation of the name for the closely connected region.
- One important historical document on the river is the treatise Tamraparni Mahatmyam.
- It has many ancient temples along its banks. A hamlet known as Appankoil is located on the northern side of the river.
Significance of the carbon dating
- This has provided evidence that there was a city civilisation in south India as long back as 3,200 years ago, the later part of the Indus Valley Civilisation.
- Vicinity to the ancient port of Muziris, now known as Pattanam, in Kerala add another significance to the trade history of this site.
- Now, research would be conducted at Quseir al-Qadim and Pernica Anekke in Egypt, which were once part of the Roman empire, as well as in Khor Rori in Oman, to establish the Tamils’ trade relations with these countries.
- Potsherds bearing Tamil scripts have been found in these countries.
- Studies would also be conducted in Southeast Asian countries, such as Indonesia, Thailand, Malaysia and Vietnam, where King Rajendra Chola had established supremacy.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Also read
Sangam era older than previously thought, finds study
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Qeqertaq Avannarleq
Mains level: Impact of climate change
A group of researchers who went out to collect samples off the coast of Greenland in July found themselves on a tiny, uninhabited and previously unknown island.
Qeqertaq Avannarleq
- Measuring 60×30 metres and with a peak of three metres above sea level, it has now become the new northernmost piece of land on Earth.
- Before this, Oodaaq was marked as the Earth’s northernmost terrain.
- The new island is made up of seabed mud and moraine, i.e. soil, rock and other material left behind by moving glaciers, and has no vegetation.
- The group has suggested the discovery be named ‘Qeqertaq Avannarleq’, which is Greenlandic for “the northernmost island”.
How this island came to existence?
Ans. Undoubtedly, climate change in Greenland
- Global warming has had a severe effect on the ice sheet of Greenland.
- The new island, which was exposed by shifting pack ice, is, however, not a direct consequence of climate change.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Pantanal Wetlands
Mains level: Not Much
Pantanal, the world’s largest tropical wetlands is facing a severe crisis due to wildfires and climate change.
Pantanal Wetlands
- The Pantanal is a natural region encompassing the world’s largest tropical wetland area, and the world’s largest flooded grasslands.
- It is located mostly within the Brazilian and extends to some portions of Bolivia and Paraguay.
- It sprawls over an area estimated at between 140,000 and 195,000 square kilometer.
- Roughly 80% of the Pantanal floodplains are submerged during the rainy seasons, nurturing a biologically diverse collection of aquatic plants and helping to support a dense array of animal species.
Risks faced
- Unlike the Amazon rainforest, vegetation in the Pantanal has evolved to coexist with fire — many plant species there require the heat from fires to germinate.
- Often caused by lightning strikes, those natural fires spring up at the end of the dry season, but the surrounding floodplains prevent them from spreading.
- What’s different now is the drought, contributing further to the unusually dry conditions and exacerbating the fire risk.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Deeper Beel
Mains level: Wetland conservation
The Ministry of Environment, Forest and Climate Change has notified the eco-sensitive zone of the Deepar Beel Wildlife Sanctuary on the south-western edge of Guwahati.
Deepar Beel
- Deepar Beel is one of the largest freshwater lakes in Assam and the State’s only Ramsar site besides being an Important Bird Area.
- It is located to the south-west of Guwahati city, in Kamrup Metropolitan district.
- It is a permanent freshwater lake, in a former channel of the Brahmaputra River, to the south of the main river.
- It is also called a wetland under the Ramsar Convention which has listed the lake in November 2002, as a Ramsar Site for undertaking conservation measures on the basis of its biological and environmental importance.
Major threats
- Deepar Beel has long been used as a sponge for Guwahati’s sewage via a couple of streams.
- The wetland has also suffered from seepage of toxins from a garbage dump at Boragaon adjoining it.
- It has for decades been threatened by a railway track — set to be doubled and electrified — on its southern rim, a garbage dump, and encroachment from human habitation and commercial units.
- The water has become toxic and it has lost many of its aquatic plants that elephants would feed on.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Sambhar Lake
Mains level: Not Much
The world-famous Sambhar Salt Lake in Rajasthan is constantly shrinking with the degradation of soil and water quality and a decline in the population of migratory birds.
Sambhar Lake
- The lake, situated 80 km south-west of Jaipur, is the country’s largest inland saline water body which attracts thousands of migratory birds every year.
- The death of more than 20,000 birds belonging to about 10 species which migrate annually to the lake had made international headlines in 2019.
- The lake receives water from six rivers: Mantha, Rupangarh, Khari, Khandela, Medtha and Samod.
- Sambhar has been designated as a Ramsar site because the wetland is a key wintering area for tens of thousands of pink flamingos and other birds that migrate from northern Asia and Siberia.
Threats: Illegal mining
- 30% of the Sambhar Lake’s area had been lost to mining and other activities, including the illegal salt pan encroachments.
- It has also threatened the livelihoods of local people who have always lived in harmony with the lake and its ecology.
Try answering this:
Which one of the following is an artificial lake? (CSP 2014)
(a) Kodaikanal (Tamil Nadu)
(b) Kolleru (Andhra Pradesh)
(c) Nainital (Uttarakhand)
(d) Renuka (Himachal Pradesh)
Post your answers here.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Volanic eruptions in news
Mains level: Volcanic landforms
Geologists have detected a swarm of earthquakes at Hawaii’s Kilauea volcano, though it was not erupting.
Kilauea Volcano
- Kilauea is about 200 miles south of Honolulu, on the Big Island of Hawaii.
- It is one of the world’s most active volcanoes, having erupted 34 times since 1952. In Hawaiian tradition, Kilauea is home to the volcano goddess Pele.
- From 1983 to 2018, it erupted almost continuously, in some cases sending streams of lava that covered farms and homes.
- At the end of this decades-long eruption, Kilauea spewed lava from vents in a residential neighborhood on its eastern flank and destroyed more than 700 homes.
- In December, Kilauea erupted at the crater, creating a lake with enough lava to fill 10 Hoover dams. That eruption ended in May.
Do not skip answering this PYQ:
Consider the following statements:
- The Barren Island volcano is an active volcano located in the Indian Territory.
- Barren Island lies about 140 km east of Great Nicobar.
- The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then.
Which of the statements given above is/are correct? (CSP 2014)
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1 and 3 only
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Back2Basics: Volcanic Landforms
- Note the intrinsic and extrinsic types of volcanic landforms
- A volcano has 3 main characteristics
- Cone shaped mountain
- Formed by rock or ash thrown from the inside of the earth
- At times, opening or depression at top
- The three main types of volcanos are:
- Cinder cone Volcano: The cinder cones are small volcanoes with steep sides. Even though they are small, these are the ones you probably hear about. They are very explosive and made of ash and rock. Most of the cinder cones are small and less than 500 meters high. A famous cinder cone is Sunset Crater Volcano in Arizona.
- Shield Volcanoes: A shield is a low and broad volcano that usually has a very wide crater (a dent in the Earth’s surface). It is formed from thin layers of lava after consistent low-grade eruptions. The largest volcano in the world is a shield volcano. It is located in Hawaii.
- Composite volcanoes: They are the tallest type of volcano. They look very impressive but do usually have quiet and slow lava flows. They sometimes have small eruptions that cause ash and rock to go flying. One of the most famous volcanoes in the world is a composite volcano. It is Mount Fuji in Japan.
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Indira Point
Mains level: NA
The Swarnim Vijay Varsh Victory Flame was taken to Indira Point, the southernmost tip of the country on August 22, 2021, as part of its voyage to the Nicobar Group of Islands.
Indira Point
- Indira Point is the southernmost point of Indian Territory.
- It is a village in the Nicobar district at Great Nicobar Island of Andaman and Nicobar Islands in India.
- Rondo Island, Indonesia’s northernmost island in Sabang district of Aceh province of Sumatra, lies 163 km south of Little Andaman Island and 145 km or 80 nautical miles from Indira point.
- The point was formerly known as Pygmalion Point and Parsons Point. It was renamed in honour of Indira Gandhi during mid-1980s.
- Galathea National Park and Lighthouse are the major attractions here.
India and Indonesia are upgrading the deep sea port Sabang under the strategic military and economic collaboration to protect the channel between Great Nicobar Island and Rondo Island which is 612 km or 330 nautical miles from Indira Point.
What is Swarnim Vijay Varsh?
- It marks the 50th anniversary of the 1971 India-Pakistan war.
- Vijay Diwas is celebrated every year on December 16 to mark India`s triumph in liberating Bangladesh.
- The journey of the Victory Flame is taken from north to south corners of India.
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Cattle Island
Mains level: Not Much
The Odisha Forest and Environment Department is all set to begin ‘Island Odyssey’ and ‘Hirakud Cruise’ ecotourism packages for tourists to islands inside the reservoir.
Cattle Island
- ‘Cattle island’, one of three islands in the Hirakud reservoir, has been selected as a sight-seeing destination.
- When large numbers of people were displaced from their villages when the Hirakud dam was constructed on the Mahanadi river in 1950s, villagers could not take their cattle with them.
- They left their cattle behind in deserted villages.
- As the area started to submerge following the dam’s construction, the cattle moved up to Bhujapahad, an elevated place in the Telia Panchayat under Lakhanpur block of Jharsuguda district.
- Subsequently named ‘Cattle island’, it’s surrounded by a vast sheet of water.
Other islands
- Then there is an “island of bats”, also within the reservoir, just 1 km away from the Debrigarh ecotourism project.
- It is the habitat of hundreds of bats.
- Tourists also get a magnificent view of the sunset from the reservoir. ‘Sunset island’ is one of the three stops on the unique boat ride.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Major rivers of the world
Mains level: NA
The federal government in the US has declared a water shortage for the Colorado river basin due to a historic drought.
Try this PYQ
Q. Consider the following pairs
River – Flows into
- Mekong — Andaman Sea
- Thames — Irish Sea
- Volga — Caspian Sea
- Zambezi — Indian Ocean
Which of the pairs given above is/are correctly matched?(CSP 2020)
(a) 1 and 2 only
(b) 3 only
(c) 3 and 4 only
(d) 1, 2 and 4 only
Post your answers here (you need to sign-in for that).
Colorado River
- The Colorado River flows from the Rocky Mountains into the southwestern US and into Mexico.
- The river is fed by snowmelt from the Rocky and Wasatch mountains and flows a distance of over 2,250 km (river Ganga flows through a distance of roughly 2,500 km) across seven states and into Mexico.
- The Colorado River Basin is divided into the Upper (Wyoming, Colorado, New Mexico, Utah and northern Arizona) and Lower Basins (parts of Nevada, Arizona, California, southwestern Utah and western New Mexico).
- In the Lower Basin, the Hoover Dam controls floods and regulates water delivery and storage.
- Apart from the Hoover dam, there is the Davis Dam, Parker Dam and the Imperial Dam that regulate the release of water from the Hoover Dam.
Major lakes in its basin
- Lake Mead is the largest reservoir in the US in terms of volume and was formed in the 1930s by the Hoover Dam in Southern Nevada.
- Its main source of water is obtained from the Rocky Mountain snowmelt and runoff.
- The other is Lake Powell, the reservoir created by the Glen Canyon Dam in Arizona.
Reasons for shortage
- Since the year 2000, this river basin has been experiencing a prolonged drought.
- This persistent drought has led to a lowering down of the water levels in the basin’s reservoirs to meet the demand over the years.
- But even with great water storing capacity, over the years the demand for water from the basin has increased whereas supply is restricted.
UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Ramsar wetlands in India
Mains level: Wetlanc conservation
Four more wetlands from India get recognition from the Ramsar Secretariat as Ramsar sites.
What are Wetlands?
- A wetland is a distinct ecosystem that is flooded by water, either permanently or seasonally, where oxygen-free processes prevail.
- The primary factor that distinguishes wetlands from other landforms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil.
Significance of Wetlands
- Wetlands provide a wide range of important resources and ecosystem services such as food, water, fibre, groundwater recharge, water purification, flood moderation, erosion control, and climate regulation.
- They are, in fact, are a major source of water and our main supply of freshwater comes from an array of wetlands that help soak rainfall and recharge groundwater.
- They provide many societal benefits: food and habitat for fish and wildlife, including threatened and endangered species; water quality improvement; flood storage; shoreline erosion control; economically beneficial natural products for human use; and opportunities for recreation, education, and research, etc.
Which are the new sites added to the Ramsar List?
- Thol and Wadhwana from Gujarat and
- Sultanpur and Bhindawas from Haryana
With this, the number of Ramsar sites in India are 46 and the surface area covered by these sites is now 1,083,322 hectares.
(1) Bhindawas Wildlife Sanctuary
- Bhindawas WLS, the largest wetland in Haryana is a human-made freshwater wetland.
- Over 250 bird species use the sanctuary throughout the year as a resting and roosting site.
- The site supports more than ten globally threatened species including the endangered Egyptian Vulture, Steppe Eagle, Pallas’s Fish Eagle, and Black-bellied Tern.
(2) Sultanpur National Park
- Sultanpur NP from Haryana supports more than 220 species of resident, winter migratory and local migratory waterbirds at critical stages of their life cycles.
- More than ten of these are globally threatened, including the critically endangered sociable lapwing, and the endangered Egyptian Vulture, Saker Falcon, Pallas’s Fish Eagle and Black-bellied Tern.
(3) Thol Lake Wildlife Sanctuary
- Thol Lake WLS from Gujarat lies on the Central Asian Flyway and more than 320 bird species can be found here.
- The wetland supports more than 30 threatened waterbird species, such as the critically endangered White-rumped Vulture and Sociable Lapwing, and the vulnerable Sarus Crane, Common Pochard, and Lesser White-fronted Goose.
(4) Wadhvana Wetland
- Wadhvana Wetland from Gujarat is internationally important for its birdlife as it provides wintering ground to migratory waterbirds, including over 80 species that migrate on the Central Asian Flyway.
- They include some threatened or near-threatened species such as the endangered Pallas’s fish-Eagle, the vulnerable Common Pochard, and the near-threatened Dalmatian Pelican, Grey-headed Fish-eagle and Ferruginous Duck.
Back2Basics: Ramsar Convention
- The Convention on Wetlands of International Importance (better known as the Ramsar Convention) is an international agreement promoting the conservation and wise use of wetlands.
- It is the only global treaty to focus on a single ecosystem.
- The convention was adopted in the Iranian city of Ramsar in 1971 and came into force in 1975.
- Traditionally viewed as a wasteland or breeding ground of disease, wetlands actually provide fresh water and food and serve as nature’s shock absorber.
- Wetlands, critical for biodiversity, are disappearing rapidly, with recent estimates showing that 64% or more of the world’s wetlands have vanished since 1900.
- Major changes in land use for agriculture and grazing, water diversion for dams and canals, and infrastructure development are considered to be some of the main causes of loss and degradation of wetlands.
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now
Note4Students
From UPSC perspective, the following things are important :
Prelims level: Port of Ningbo-Zhoushan
Mains level: Not Much
China has partially shut down the world’s third-busiest container port, the Ningbo Port, after a worker there tested positive for Covid-19.
Port of Ningbo-Zhoushan
- This port is the busiest in the world in terms of cargo tonnage.
- It handled 888.96 million tons of cargo in 2015.
- The port is located in Ningbo and Zhoushan, on the coast of the East China Sea, in Zhejiang province on the southeast end of Hangzhou Bay, across which it faces the municipality of Shanghai.
- The port is at the crossroads of the north-south inland and coastal shipping route, including canals to the important inland waterway to interior China, the Yangtze River, to the north.
- The port consists of several ports which are Beilun (seaport), Zhenhai (estuary port), and old Ningbo harbour (inland river port).
What is the potential impact of the closure?
- Despite the diversion of shipments to other terminals, experts are anticipating a backlog of consignments with average wait times being expected to rise.
How is it likely to affect global trade?
- In the aftermath of Covid-19, global supply chains have remained fragile mainly on account of closures and lockdowns that affected both the manufacturing and the logistical segments of the chain.
- This has not only resulted in a growing backlog of shipments but has also caused freight charges to go up as demand outgrew the supply.
- Extended closure of one of the biggest terminals at the third-busiest port in the world could further exacerbate the stress in global trade.
Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024
Attend Now