The lowest temperature to which air can be cooled by evaporating water into it is called
| A. | Wet bulb temperature |
| B. | Potential temperature |
| C. | Equivalent temperature |
| D. | Dew point temperature |
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Option: D Explanation : Click on Discuss to view users comments. |
Relative humidity of the atmosphere is directly affected by
| A. | Change in atmospheric pressure |
| B. | Change in atmospheric temperature |
| C. | Change in the direction of winds |
| D. | None of these |
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Option: B Explanation : Click on Discuss to view users comments. |
When rain falls through a cold layer of air near the earth's surface, rain drops get frozen into ice. This type of precipitation is called
| A. | Snowfall |
| B. | Hailstones |
| C. | Sleet |
| D. | Frost |
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Option: C Explanation : Click on Discuss to view users comments. |
When moist air meets cold surface of earth, some of the water vapours condense on the particles of dust in air. It is called
| A. | Dew |
| B. | Fog |
| C. | Mist |
| D. | Cloud |
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Option: B Explanation : Click on Discuss to view users comments. |
Choose the incorrect statement:
| A. | Capacity of air to hold moisture decreases with a rise in temperature of the air |
| B. | The air pressure decreases with an increase in temperature |
| C. | Absolute humidity is expressed in grams per cubic metre of air |
| D. | With an ascent of every 165 metres, the temperature is reduced by 1°C |
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Option: A Explanation : Click on Discuss to view users comments. |
