Clouds with vertical development are known as
| A. | Cirrus |
| B. | Cumulonimbus |
| C. | Stratus |
| D. | Cirrocumulus |
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Option: D Explanation : Click on Discuss to view users comments. |
The instrument used for measuring relative humidity in air is
| A. | Hygrograph |
| B. | Hydrograph |
| C. | Pantograph |
| D. | Barograph |
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Option: A Explanation : Click on Discuss to view users comments. |
The formation of fog occurs when
| A. | Cool air blows over warm water |
| B. | Moist air meets cold surface of the earth |
| C. | Moist-air meets warm air |
| D. | Warm air meets cold surface of the earth |
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Option: B Explanation : Click on Discuss to view users comments. |
