Question

1. Mention the characteristic features of the atmosphere - its composition, layers and importance.
Ans.​

Answer 1

so lenthy question its not possible to define here

Answer 2

Answer:

Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.