Question

what is atmosphere???​

Answer 1

Answer:

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. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low.

Answer 2

atmosphere is the thin layer of air that surrounds earth.

its made up of various gases like oxygen, nitrogen and carbon dioxide.it protects from harmful rays.