Question

What is the atmosphere? What is it composed of?

Answer 1

Atmosphere:

• The earth is surrounded by an invisible thick layer of air called the atmosphere.
• It extends to thousands of kilometers above the surface of the earth.
• It protects the earth’s surface from harmful radiation from the sun.
• Without the atmosphere, there could be no life on earth.
• The atmosphere is mainly composed of five layers: These are troposphere, stratosphere, mesosphere, thermosphere, and exosphere.