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In which of the following atmospheric layers ozone gas is concentrated?
1. Troposphere
2. Stratosphere
3. Mesosphere
4. Ionosphere

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Correct Answer - Option 2 : Stratosphere

The correct answer is Stratosphere.

  • The ozone layer is a part of the atmosphere that has high concentrations of ozone, compared to oxygen molecules that exist in nature as a pair of oxygen atoms.
  • The ozone layer in the stratosphere absorbs a portion of the radiation from the sun, preventing it from reaching the planet's surface.
  • September 16th every year is marked as the International Day for the Preservation of the Ozone Layer.

  • Most ozone almost 90 percent is found in the stratosphere.
  • The Stratosphere begins about 10–16 kilometers above Earth's surface and extends up to about 50 km altitude.
  • The stratospheric region is commonly known as the ozone layer due to the highest ozone concentration.
  • The Stratosphere is the second major layer of the atmosphere of the Earth.
  • The Stratosphere just above the troposphere and below the mesosphere.
  • The lower edge of the stratosphere is as high as 20 km near the equator, at midlatitudes around 10 km, and at the poles about 7 kilometers.

  • There are 5 layers of atmosphere depending on temperature are the following
    • Troposphere
    • Stratosphere
    • Mesosphere
    • Thermosphere
    • Exosphere

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