Question

What is the thin layer of air that surrounds the earth? What is its significance?

Answer 1

Explanation:

Atmosphere is the thin layer of air that surrounds the earth

significance:

• it acts as a blanket for the earth
• it prevents the entry of some harmful radiations from the sun like uv rays
• it traps heat from the sun helping in maintaining constant temperature for the earth
• it plays an important role in the water cycle

Answer 2

Answer:Atmosphere

Explanation: As it is a cover for Earth as it doesn't let   the gases   out of the earth as well as it contains   gases like O2 , H2O .etc.