Question 11 : The Montreal Protocol bans the production of which of the following chemical substances?
1. Chlorine, bromine, CFCs, freons
2. Carbon tetrachloride, halons, trichloroethane, CFCs
3. CFCs, bromine, halons, freons
4. CFCs, halons, freons
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Question 12 : Turbopause is highest layer of the homosphere.
1. True
2. False
3.
4.
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Question 13 : Which of the following UV radiations is responsible for causing sun burns and skin cancer?
1. UV-A
2. UV-B
3. UV-C
4. All of the mentioned
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Question 14 : Clouds help in cooling down the planet and do not contribute to greenhouse effect. True or false?
1. True
2. False
3.
4.
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Question 15 : What is the GWP of methane over a time period of 20 years?
1. 86
2. 34
3. 43
4. 67
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Question 16 : What does GWP in the context of greenhouse gases indicate?
1. Global Warming Parameters
2. Gradual Warming Pattern
3. Global Warming Patterns
4. Global Warming Potential
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Question 17 : What is the reason for extreme difference in temperatures at day and night in deserts?
1. Carbon dioxide concentrations are low in desert regions, therefore heat escapes easily
2. Sand has high heat conduction properties
3. Lack of moisture leads to escape of heat
4. All of the mentioned
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Question 18 : What does 'airborne fraction' with respect to greenhouse gases indicate?
1. Amount of greenhouse gases that are released into air due to industrial process
2. Proportion of greenhouse gases in air to all the other atmospheric gases
3. Proportion of greenhouse gas emission that remain even after a specified time
4. None of the mentioned
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Question 19 : The long UV-B radiations are important for vitamin D production of the skin.
1. True
2. False
3.
4.
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Question 20 : In which layer of the ionosphere does the International Space Station orbit?
1. D
2. E
3. F
4. G
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