Question
Sun July 03, 2011 By:

Why there is a need for humidity?

Expert Reply
Mon July 04, 2011
Humidity is the amount of water vapour present in air.It is an important requirement for the atmosphere.The presence of water vapor makes our atmosphere unique.It encouraged and protected life on earth as it developed, not only by providing oxygen for respiration, but by shielding organisms from harmful UV rays i.e GREEN HOUSE EFFECT and by incinerating small meteors before they hit the surface. Additionally, the composition and structure of this unique resource are important keys to understanding circulation in the atmosphere, biogeochemical cycling of nutrients, short-term local weather patterns, and long-term global climate changes.
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