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Above which layer of the atmosphere does the Exosphere lies?
1. Troposphere
2. Stratosphere
3. Thermosphere
4. Mesosphere

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Correct Answer - Option 3 : Thermosphere

The Correct Answer is Thermosphere.

  • The exosphere is the outermost layer of the Earth's atmosphere.
  • It starts at an altitude of about 500 km and goes out to about 10,000 km.
  • The column of the atmosphere is divided into five different layers depending upon the temperature condition.
  • They are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
  • The troposphere is the lowermost layer of the atmosphere. Its average height is 13 km and extends roughly to a height of 8 km near
    the poles and about 18 km at the equator.
  • The zone separating the troposphere from the stratosphere is known as the tropopause.
  • The stratosphere is found above the tropopause and extends up to a height of 50 km.
  • It contains the ozone layer.
  • The mesosphere lies above the stratosphere, which extends up to a height of 80 km.
  • The ionosphere is located between 80 and 400 km above the mesopause.
  • The thermosphere is known as the exosphere.
  • This is the highest layer but very little is known about it.

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