The progressive warming up of the earth's surface is mainly due to the___________________?
Correct answer: B. Blanketing effect of CO2 in the atmosphere
- A. Automobile exhaust
- B. Blanketing effect of CO2 in the atmosphere
- C. De-forestation
- D. Thickening of ozone layer
Explanation
Carbon dioxide contributes to global warming by absorbing outgoing infrared radiation and producing a blanketing or greenhouse effect. Deforestation increases this effect indirectly, but the stated main cause is atmospheric CO2.
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