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    Question

    Given below are assertion and reason  Assertion:

    The Earth's atmosphere is divided into distinct layers – Troposphere, Stratosphere, Mesosphere and Thermosphere.  Reason: The division of the atmosphere into layers is based on variations in temperature and composition at different altitudes. Based on the statement choose the correct option
    A Both the assertion and reason are correct, and the reason is a correct explanation of the assertion. Correct Answer Incorrect Answer
    B Both the assertion and reason are correct, but the reason is not a correct explanation of the assertion. Correct Answer Incorrect Answer
    C The assertion is correct, but the reason is incorrect. Correct Answer Incorrect Answer
    D Both the assertion and reason are incorrect. Correct Answer Incorrect Answer

    Solution

    The Earth's atmosphere is indeed divided into distinct layers, each with unique characteristics. These layers are defined based on variations in temperature and composition at different altitudes. The primary layers of the atmosphere, from the Earth's surface upwards, are the troposphere, stratosphere, mesosphere and thermosphere.

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