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Question 1 of 5
1. Question
1 pointsWhich of the following sources produce sulphur dioxide emissions?
1. Volcanoes
2. Phytoplankton
3. Burning of coal and oil
4. Smelter ovens
Select the correct answer using the codes given belowCorrect
All 1, 2, 3 and 4 are correct. Natural sources (volcanoes, fires, phytoplankton) produce sulphur dioxide, but burning sulphur-rich fossil fuels—primarily coal, oil, and petroleum—is the main source of the gas. Smelter ovens, which are used to concentrate metals found in ore, also produce it. In addition to harming human health, Sulphur dioxide reacts with water vapour to produce acid rain. Sulphur dioxide also can react in the atmosphere to form aerosol particles, which can contribute to outbreaks of haze and influence the climate.
Incorrect
All 1, 2, 3 and 4 are correct. Natural sources (volcanoes, fires, phytoplankton) produce sulphur dioxide, but burning sulphur-rich fossil fuels—primarily coal, oil, and petroleum—is the main source of the gas. Smelter ovens, which are used to concentrate metals found in ore, also produce it. In addition to harming human health, Sulphur dioxide reacts with water vapour to produce acid rain. Sulphur dioxide also can react in the atmosphere to form aerosol particles, which can contribute to outbreaks of haze and influence the climate.
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Question 2 of 5
2. Question
1 pointsMiyawaki method, sometimes seen in news is related to which of the following?
Correct
Miyawaki method originated in Japan, and is now increasingly adopted in other parts of the world, including Indian urban spaces. It has revolutionised the concept of urban afforestation by turning backyards into miniforests. Named after the Japanese botanist and plant ecologist Akira Miyawaki. In contrast to conventional planting techniques, this method allows for planting more number of trees in small spaces. The trees grow faster too and are free of chemicals and fertilisers. The advantage of Miyawaki method is that the saplings need minimum maintenance.
Incorrect
Miyawaki method originated in Japan, and is now increasingly adopted in other parts of the world, including Indian urban spaces. It has revolutionised the concept of urban afforestation by turning backyards into miniforests. Named after the Japanese botanist and plant ecologist Akira Miyawaki. In contrast to conventional planting techniques, this method allows for planting more number of trees in small spaces. The trees grow faster too and are free of chemicals and fertilisers. The advantage of Miyawaki method is that the saplings need minimum maintenance.
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Question 3 of 5
3. Question
1 pointsIsrael shares borders with which of the following countries?
1. Saudi Arabia
2. Egypt
3. Turkey
4. Jordan
5. Lebanon
Select the correct answer using the codes given belowCorrect
Israel borders Egypt, Jordan, Lebanon, Syria, and the Palestinian territories of West Bank and the Gaza Strip; it shares maritime borders with Cyprus.
Incorrect
Israel borders Egypt, Jordan, Lebanon, Syria, and the Palestinian territories of West Bank and the Gaza Strip; it shares maritime borders with Cyprus.
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Question 4 of 5
4. Question
1 pointsWhich of the following are the member states of Shanghai Co-operation Organisation (SCO)?
1. Kazakhstan
2. Kyrgyzstan
3. Uzbekistan
4. Turkmenistan
5. Russia
Select the correct answer using the codes given belowCorrect
The SCO comprises eight member states, namely the Republic of India, the Republic of Kazakhstan, the People’s Republic of China, the Kyrgyz Republic, the Islamic Republic of Pakistan, the Russian Federation, the Republic of Tajikistan, and the Republic of Uzbekistan.
Incorrect
The SCO comprises eight member states, namely the Republic of India, the Republic of Kazakhstan, the People’s Republic of China, the Kyrgyz Republic, the Islamic Republic of Pakistan, the Russian Federation, the Republic of Tajikistan, and the Republic of Uzbekistan.
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Question 5 of 5
5. Question
1 pointsConsider the following statements about VEDAS
1. It is an online geo-processing platform using an optical, microwave, thermal and hyperspectral EO data.
2. It covers applications particularly meant for academia, research and problem solving, according to ISRO.
Which of the statements given above is/are correct?Correct
-Statement 1 is correct. VEDAS (Visualization of Earth observation Data and Archival System) is an online geo-processing platform using an optical, microwave, thermal and hyperspectral EO data.
-Statement 2 is correct. It covers applications particularly meant for academia, research and problem solving, according to ISRO.Incorrect
-Statement 1 is correct. VEDAS (Visualization of Earth observation Data and Archival System) is an online geo-processing platform using an optical, microwave, thermal and hyperspectral EO data.
-Statement 2 is correct. It covers applications particularly meant for academia, research and problem solving, according to ISRO.
Leaderboard: 18th February 2021 | Prelims Daily with Previous Year Questions
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