Q. Which of the following best explains the concept of ‘DEGASSING&#x

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Q. Which of the following best explains the concept of ‘DEGASSING’?

Options:

A . The first biological production of oxygen by unicellular organisms in the atmosphere.

B . A planetary atmosphere accumulated which would consist of primordial gases.

C . The process of continuous volcanic eruptions due to tectonic activity.

D . The process through which the gases were outpoured from the interior of the earth.

Answer: Option D
:
D
Explanation:
During the cooling of the earth, gases and water vapour were released from the interior solid earth, which started the evolution of the present atmosphere. The early atmosphere largely contained water vapour, nitrogen, carbon dioxide, methane, ammonia and very little of free oxygen. The process through which the gases were outpoured from the interior is called degassing.

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