MCQOPTIONS
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| 1. |
As we go up in air the temperature of air decreases because |
| A. | Pulsejet |
| B. | winds help in heat transfer by convection |
| C. | of low pressure of air |
| D. | oxygen content of air decreases sharply |
| E. | heating effect due to infra red radiations from the surface of the earth is reduced |
| Answer» F. | |