Maintaining consistency is one of the biggest issues faced by IAS Aspirants. Streak’s initiative is to help Aspirants in their day-to-day preparation. You can follow the monthly, weekly, and daily timetables and continue this streak until you find yourself on the final list.

Please register for Streak Initiative (free) through this link:- https://www.civilsdaily.com/course/streak-daily-initiative/

You will get following study material:-

1. Questions (PDF).
2. RSTV/Yojana monthly notes (PDF).
3. Burning issue (PDF).
4. Subject specific (PDF).
5. Mentor’s phone call for support & encouragement.

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UPSC Daily Study Plan For 2021 and 2022 || STREAK – by Ravi Ranjan

CSAT for UPSC Prelims || Free CSAT Sessions by Civilsdaily – by Ravi Ranjan

UPSC PRELIMS-2021 || Current Affairs Based Most Probable Questions – by Sukanya Rana

Q1) Which of the following can cause DNA damage and mutations in humans?

a. Absorption of UV – A and UV – B

b. Absorption of UV – B

c. Absorption of UV – A

d. Absorption of UV – A and UV – C

Q2) Consider the following statements:

1. The objective of the Minamata Convention is to protect human health and the environment from anthropogenic emissions and releases of mercury and mercury compounds.
2. The treaty also addresses the direct mining of mercury, its export and import, its safe storage and its disposal once as waste.
3. Dental fillings which use amalgam are also regulated under the convention.

Select the correct option:

a. 1 only

b. 1 and 2

c. 1 and 3

d. 1, 2 and 3

Q3) Consider the following statements about ozone hole over Arctic 

1. It has reached a maximum extension of around 1 million sq km. 
2. Recently, the German Aerospace Centre observed the closure of ozone holes mainly because of the reduced pollution levels due to covid-19 lockdown. 

Which of the above statement(s) given above is/are correct? 

a. 1 only 

b. 2 only 

c. Both 1 and 2 

d. Neither 1 nor 2

Q4) Consider the following statements with respect to Deepor Beel Lake 

1. It is a permanent freshwater lake, in a former channel of the Brahmaputra River. 
2. It is the only wetland in Assam designated as a site of importance under Ramsar Convention on Wetlands. 

Which of the statement(s) given above is/are correct? 

a. 1 only 

b. 2 only 

c. Both 1 and 2 

d. Neither 1 nor 2

Q5) Consider the following statements with respect to Galathea National Park 

1. It is located on the island of Great Nicobar in the Andaman & Nicobar Islands.
2. It is an iconic nesting site in India of the enigmatic Giant Leatherback, the world’s largest marine turtle. 
3. The park is home to the indigenous Shompen community. 

Which of the statements given above are correct? 

a. 1 and 2 only 

b. 1 and 3 only 

c. 2 and 3 only 

d. 1, 2 and 3

UPSC PRELIMS-2021 || Most Probable Questions on Environment & Ecology – by Santosh Gupta

Q1) Which of the following are regarded as ‘Ecosystem services’?

1. Soil formation
2. Nutrient cycling
3. Habitat for wildlife
4. Climate regulation
5. Tourism 

Select the correct answer using the code

given below.

a. 1 and 2 only

b. 3, 4 and 5only

c. 1, 2 and 3 only

d. All of them

Q2) Which of the following is/are the causes of coral bleaching in India?

1. Excessive sedimentation in the reef
2. ecosystem
3. Excess nutrients like ammonia and
4. nitrates entering the reef system
5. Increased exposure to Ultraviolet (UV)
6. Radiation
7. Repeated EL- Nino and La- Nina

Select the correct answer using the code given below.

a. 1 and 3 only

b. 1, 2 and 3 only

c. 2 and 4 only

d. All of them 

Q3) Which of the following contribute in the Cultural eutrophication?

1. Excessive use of fertilisers
2. Untreated sewage
3. Detergents containing phosphorus
4. Discharge of industrial waste
5. Acid rain 

Select the correct answer using the code given below.

a. 2, 3 and 4 only

b. 1, 2 and 4 only

c. 1 and 3 only

d. All of them 

Q4) Which of the following is/are the reasons for ozone depletion by polar stratospheric clouds?

1. They convert free radicals of halogens to oxide which then reacts with ozone causing its depletion. 
2. They remove gaseous nitric acid which reacts with oxides of halogens. 

Select the correct answer using the code given below.

a. 1 only

b. 2 only

c. 1 and 2 

d. None of them

Q5) Consider the following statements

1. The acidified ocean water leads to reduction of sulphur which may lead to decreased cloud formation and raising global temperatures. 
2. Ocean acidification occurs through the uptake of carbon dioxide (CO2) from the atmosphere only

Which of the statement(s) given above is/are correct?

a. 1 only

b. 2 only

c. 1 and 2 

d. None of them

Daily Dose: Complete Snapshots of Everyday News – by Shweta Mishra