Question

what is atmosphere?why is atmosphere essential for life on earth?why do mountaineers carry oxygen cylinders with them while climbing high mountains?
please solve it's urgent​

Answer 1

Answer:

1. An atmosphere is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.

2.Atmosphere is essential for life because it has oxygen and other useful gases which humans need for their survival.

3.Atmospheric pressure is low at high altitudes. The volume of air increases and the air becomes less dense because the volume is inversely proportional to density. Hence, a lesser volume of oxygen is available for breathing. Thus, mountaineers have to carry oxygen cylinders with them.

Explanation:

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Answer 2

Answer:

what is atmosphere?why is atmosphere essential for life on earth?why do mountaineers carry oxygen cylinders with them while climbing high mountains?

please solve it's urgent

Explanation:

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