MCQOPTIONS
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MCQOPTIONS
| 1. |
What do you understand by greenhouse effect? |
| A. | Increase in temperature due to increase in O2 concentration of the atmosphere |
| B. | Decrease in temperature due to decrease in O2 concentration of the atmosphere |
| C. | Increase in temperature due to increase in CO2 concentration of the atmosphere |
| D. | Decrease in temperature due to decrease in CO2 concentration of the atmosphere |
| Answer» D. | |