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Which layer of atmosphere can experience burning up of meteorites?

Which layer of atmosphere can experience burning up of meteorites? Correct Answer Mesosphere

The correct answer is Mesosphere.

Key Points

  • The Earth's atmosphere is like a blanket of air and consists of different gases like Nitrogen-78 %, Oxygen-21 %, Argon-0.93 %, and Carbon dioxide-0.04 %.
  • ​Earth's atmosphere is composed of six layers and the mesosphere is one such layer-
  • Mesosphere: 
    • This layer lies above the stratosphere and below the thermosphere and extends from 50 to 80 km above the earth's surface.
    • It is the middle layer of the atmosphere. Because of the thin air, you would not breathe easily in this layer. 
    • Most of the meteors and rock are burned up in these layers before reaching the earth. 
    • This layer has more gases than the above layers i.e. exosphere and thermosphere which causes more friction and heat to burn up meteors.

Additional Information 

Other layers are as follows: 

  • Troposphere: The troposphere is the innermost layer of the earth's atmosphere.
    • Mixing up of gases and changing weather occurs in this layer.
    • This layer is dense and closest to the earth's surface and 10 - 15 km above the surface.
    • This layer consists of dense air, water vapour, the formation of clouds, and all-weather phenomena that take place in this layer. 
    • Thus, this layer contains about  80% of the total mass of the atmosphere.
  • Stratosphere: This layer lies above the troposphere and below the mesosphere.
    • The Earth's ozone layer is found in this layer.
    • This ozone layer is located between 15 to 50 km above the surface.
    • This layer absorbs the ultraviolet rays from the sun and gives protection to the earth from its harmful effects.
  • Ionosphere: The Ionosphere is a highly active layer of the atmosphere as it shrinks or expands continuously depending upon the amount of energy absorbed.
    • The sun radiation causes gases to form ions having an electric charge.
    • This layer helps in propagating radio signals and sending them back to earth.
  • Thermosphere: The thermosphere is located in between the exosphere and mesosphere.
    • 'Thermos' means heat, this layer contains the most heat and this layer can produce heat up to 4,500 degrees Fahrenheit.
    • This layer is the most thicker than all the inner layers of the atmosphere. 
    Exosphere: This is the outermost and thinner layer of the earth's atmosphere.
    • It has a low atmospheric pressure and gas molecules are in wide spaces.
    • It is composed of lighter gases like helium, argon, and hydrogen.

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