Question

what is the composition of the atmosphere?

Answer 1

The earth’s Atmosphere is a layer of gases which surrounds it, held in place by earth’s gravity.

 

The layers which make up the Atmosphere are as follows:

 

o    Troposphere    0 - 12 KM

o    Stratosphere    12 - 50 KM

o    Mesosphere    50 - 80 KMS

o    Thermosphere 80 – 700 KM

o    Exosphere       700 – 10000 KM

 

The atmosphere helps to sustain life on our planet.

Answer 2

Answer:

The atmosphere is composed mainly of nitrogen and oxygen, which make up about 99 per cent of clean, dry air. Nitrogen 78 per cent, oxygen 21 per cent and other gases like carbon dioxide, argon and others comprise 1 per cent by volume.

Explanation: