Explain the significance of water vapour …
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Yogita Ingle 5 years, 1 month ago
Moisture present in the atmosphere in the form of gaseous state is called water vapour.Humidity is the amount of water vapour present in the atmosphere.
1. There is a variation in the content of water vapour in the atmosphere with respect to time and place.
2. As one goes higher in the altitude, the amount of water vapour decreases. Above twelve km from the earth's surface, there is almost no water vapour.
3. In polar regions it is practically absent in winter while in warm and humid equatorial regions have a high amount of water vapour.
4. Water vapour is the source of moisture for clouds, rain and frost.
5. Water vapour is the gas that absorbs heat. Hence, it is so a greenhouse gas. It releases this heat when it condenses.
6. It plays a prominent role in heating and cooling of the atmosphere.
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