Which of the following constituents of the atmasphere are important from the climatic point of view?
1. Nitrogen
2. Oxygen
3. Carbon dioxide
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1, 2 and 3 |
| D. | only 3 |
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Option: D Explanation : Click on Discuss to view users comments. |
The instrument used for finding out wind direction is
| A. | Anemometer |
| B. | Wind vane |
| C. | Wind gauze |
| D. | Hygrometer |
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Option: B Explanation : Click on Discuss to view users comments. |
What is the main cause of the movement in the earth's atmosphere?
| A. | Difference in air pressure |
| B. | Solar energy |
| C. | Difference in temperature |
| D. | Wind |
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Option: B Explanation : Click on Discuss to view users comments. |
