MCQOPTIONS
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| 1. |
Between heights of 20 to 50 km in the stratosphere the temperature rises from about \[-{{55}^{o}}C\] to \[-{{0}^{o}}C\] because of: |
| A. | Large absorption of solar radiation by pure air. |
| B. | Lack of vertical movement of air. |
| C. | Presence of ozone gas. |
| D. | Presence of minute particles. |
| Answer» D. Presence of minute particles. | |