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Discussion :: Environmental Science

  1. The main atmospheric layer near the surface of earth is

    2. A.

     troposphere
    B.

     mesophere
    C.

     ionosphere
    D.

     stratosphere

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    Answer : Option A

    Explanation :

    The atmosphere has 4 layers: the troposphere that we live in near the surface of the earth; the stratosphere that houses the ozone layer; the mesosphere, a colder and lower density layer with about 0.1% of the atmosphere; and the thermosphere, the top layer, where the air is hot but very thin.

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