Question

Why is the atmosphere essential for life?

• A. It acts as a blanket and keeps the average temperature of the Earth.
• B. It contains all the gases which are essential for sustaining life on the Earth.
• C. Ozone layer present in the atmosphere prevents harmful UV rays from reaching the Earth.
• D. Water cycle is not possible without atmosphere.

Answer 1

Answer: (A), (B), (C), (D)

Water cycle is not possible without atmosphere.

The air that covers the whole of the Earth like a blanket, is called the atmosphere. Atmosphere is essential for life because of the following reasons:
i) It acts as a blanket and keeps the average temperature of the Earth.
ii) It contains all the gases which are essential for sustaining life on the Earth.
iii) Ozone layer present in the atmosphere prevents harmful UV rays from reaching the Earth.
iv) Water cycle is not possible without atmosphere.