what is troposphere
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the lowest region of the atmosphere, extending from the earth's surface to a height of about 6–10 km (the lower boundary of the stratosphere).
layers of the atmosphere
troposphere ( which is 6-10 km in height from the earth surface )
stratosphere ( which is 10-40 km in height from the earth surface )
mesosphere (which is 40-80 km in height from the earth surface )
thermosphere (which is 80-100 km in height from the earth surface )
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:-
➝what is Troposphere?
:-
- It is the most important and the lowest layer of the atmosphere.
- its average height is 13 kilometre.
- Troposphere extend upto height of 18 kilometre above the equator and about 8 kilometre above the poles.
- The temperature decreases with the height at an average rate of 1°C for 165 metres. this is known as lapse rate.
- All human activities take place in this layer.
- All weather phenomena such as clouds and storms occur in this layer therefore it is known as weather - making zone.
- water vapour and dust particles are found only in this layer.
- this layer protects us from the excessive heat of the sun during the day and keeps the earth's surface warm at night.
- Troposphere has about 90% of the air in the atmosphere.
- the upper limit of the troposphere is called Tropopause.
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