Question

why is atmosphere essential for life class 9

Answer 1

Atmosphere is essential for life because of the following reasons: (i) It acts as a blanket and keeps the average temperature of the Earth fairly steady by preventing sudden increase in temperature during the day and slowing down the escape of heat into outer space during the night.

Answer 2

The multi layered gaseous envelope surrounding the planet earth is called atmosphere. Atmosphere filters sunlight reaching the earth affect climate and is a reservior of several elements which are essential for life. Oxygen is required by most living being for respiration and for burning of materials. Air contains about 20% Oxygen and its percentage in air is balanced by the process of photosynthesis. Photosynthesis occurs in chloroplast of green plants and this metabolic activity requires you to water and send that but release Oxygen gas Ozone umbrella of atmosphere does not allow penetration movie of ultraviolet light of solar radiation to reach the earth the solar radiation otherwise of an organism adversely