Select the correct answer

What is the envelope of gas that surrounds. Earth?

A.

geosphere

atmosphere

B

c.

hydrosphere

D.

biosphere

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Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.

Explanation:

Atmosphere

Atmosphere.

Explanation:

Earth is the only planet where the environmental conditions are favorable to support life. Different layers of the earth are atmosphere, geosphere, biosphere and hydrosphere.

Atmosphere surround the earth like the blanket and protect the organisms from the harmful sun rays. Atmosphere is the envelope of all the gases that surrounds the earth. Atmosphere is important for the maintenance of life on the planet earth.

Thus, the correct answer is option (B).