UPSC Geography Atmosphere / वायुमंडल Question Bank Atmosphere

  • question_answer
    There are three distinct characters of temperature stratification of atmosphere around the Earth. Which one among the following is the correct arrangement of the layers (from the Earth's surface upwards?                [CDS 2017-II]

    A)  Thermosphere - Stratosphere -Troposphere

    B)  Troposphere - Thermosphere - Stratosphere

    C)  Troposphere - Stratosphere - Thermosphere

    D)  Thermosphere- Troposphere - Stratosphere

    Correct Answer: C

    Solution :

     Troposphere: This is the lowest atmospheric layer and is about seven miles (11 km) thick. Most clouds and weather are found in the troposphere.
    Stratosphere: The stratosphere is found from about 7 to 30 miles (11-48 kilometres) above the Earth's surface. In this region of the atmosphere is the ozone layer found.
    Mesosphere:  The mesosphere is above the stratosphere. Here the atmosphere is with rarefied, that is, thin, and the temperature is decreasing with altitude.
    Thermosphere; The thermosphere starts at about kilometres. The temperature is quite hot.
    Exosphere: The exosphere is the region beyond the thermosphere.
    Ionosphere: The ionosphere overlaps the other atmospheric layers, from above the Earth. The ionized by the Sun's ultraviolet light.


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