.......... percentage of the mass of the atmosphere lies in the troposphere.
A
10
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B
20
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C
50
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D
80
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Solution
The correct option is D 80 The troposphere is the layer of the atmosphere. This is the layer which is present closest to the surface of the Earth. The mass of the atmosphere which is present in the troposphere is the largest. The mass in percentage is equal to about 80%. There is about 99% of water vapour in the troposphere.