Which one of following pairs of gases is the major cause of greenhouse effect?
A
CO2 and O3
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B
CO2 and CO
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C
CFC and SO2
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D
CO2 and N2O
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Solution
The correct option is ACO2 and O3 The major greenhouse gases responsible for greenhouse effect are carbon dioxide, ozone, methane and water vapour. These gases acts like a thick warm blanket outside that surrounds this planet and regulates climate control. Water vapour causes about 36-70% of the greenhouse effect on earth, carbon dioxide CO2, which causes 9-26%; methane, which causes 4-9%, and ozone, which causes 3-7%.