Question

how much is the proportion of the in the stratosphere answer in English
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Answer 1

Answer:

The stratosphere is the layer of highly stratified air that extends for roughly 40 km above the tropopause and contains approximately 20% of the mass of the atmosphere.

Explanation:

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Answer 2

Answer:

it starts from where troposphere ends. it extend to 31 miles off the surface. 19 percent of atmospheric gases. very little water vapour