Global warming refers to the slow increase in the Earth’s surface temperature, which has been happening for the last one or two hundred years. This temperature rise has disrupted the planet’s weather patterns. Although some people debate the idea of global warming, scientists have presented data supporting the fact that the Earth’s temperature is steadily going up.
Global warming has various reasons, and it harms people, plants, and animals. Some of these reasons are natural, while others are caused by human actions.
Global Warming MCQ for NEET
Ques 1. This is not a possible adverse effect of global warming
1. extraordinary weather patterns
2. an increase of UVB radiation
3. retreat of glaciers
4. sea level rise
Answer: an increase of UVB radiation
Ques 2. CFCs have a continuing effect on the ozone layer as
1. Cl atoms formed by them only act as catalysts in reactions causing degradation of the ozone
2. they are being produced in increasing amounts all over the world
3. Cl atoms formed by them are used up in reactions causing degradation of the ozone
4. they are efficiently absorbed by atmospheric water vapours
Answer: Cl atoms formed by them only act as catalysts in reactions causing degradation of the ozone
Ques 3. This process is functional in removing carbon dioxide from the atmosphere
1. lightning
2. photosynthesis
3. burning of fossil fuels
4. deforestation
Answer: photosynthesis
Ques 4. Checking of re radiating heat by atmospheric carbon dioxide, dust, methane, ozone is known as
1. ozone layer
2. radioactive effect
3. solar effect
4. greenhouse effect
Answer: greenhouse effect
Ques 5. Mainly, Ozonosphere is depleted by
1. CFCs
2. ozone
3. excess CO2
4. excess CO
Answer: CFCs
Ques 6. CFCs are crucial in global warming along with their role in ozone depletion as it
1. absorbs solar radiation
2. blocks ultraviolet-B radiation
3. is known for destroying ozone, which cools the earth
4. absorbs earthshine in 10 micron region
Answer: absorbs earthshine in 10 micron region
Ques 7. Correct descending order of relative contribution of various greenhouse gases to total global warming is
1. carbon dioxide; CFCs; methane; nitrous oxide
2. carbon dioxide; methane; nitrous oxide; CFCs
3. carbon dioxide; CFCs; nitrous oxide; methane
4. carbon dioxide; methane; CFCs; nitrous oxide
Answer: carbon dioxide; methane; CFCs; nitrous oxide
Ques 8. Ultraviolet radiations from sunlight cause a reaction producing
1. sulphur dioxide
2. ozone
3. fluorides
4. carbon monoxide
Answer: ozone
Ques 9. Surplus of atmospheric carbon dioxide causes an increase in the greenhouse effect as carbon dioxide
1. is opaque to infrared rays
2. reduce atmospheric pressure
3. precipitates dust in the atmosphere
4. is not opaque to infrared rays
Answer: is opaque to infrared rays
Ques 10. Which of the following is not a major greenhouse gas?
1. water vapour
2. ozone
3. methane
4. carbon dioxide
Answer: ozone
