Question

What is the extension of the earth's
atmosphere called​

Answer 1

$\huge\tt\red{ Stratosphere}$

Answer 2

Answer:

stratosphere

The stratosphere can be found at altitudes between 20 and 50 kilometers (12 and 31 miles). Temperatures rise as altitude increases in the stratosphere, and this leads to little mixing of air. Commercial airliners, which reach cruising altitude within the stratosphere, take advantage of this stability. The stratosphere is also home to the ozone layer, which protects the biological organisms from harmful ultraviolet radiation.

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