Question

Define the term Atmosphere. Explain the composition of the Atmosphere.
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Answer 1

Answer:

Atmosphere is the air surrounding the earth. The atmosphere is a mixture of different gases. It contains life-giving gases like Oxygen for humans and animals and carbon dioxide for plants. It envelops the earth all round and is held in place by the gravity of the earth.

The atmosphere is composed of a mix of several different gases in differing amounts. The permanent gases whose percentages do not change from day to day are nitrogen, oxygen and argon. Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%.

Answer 2

Explanation:

Atmosphere: The thick envelope of air surrounding the earth is called the atmosphere. It is one of the natural components of the environment. The survival of all the living beings on this planet depends on the atmosphere.

The atmosphere is composed of a mix of several different gases in differing amounts. The permanent gases whose percentages do not change from day to day are nitrogen, oxygen and argon. Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%.

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