Multiple choice

Which layer of atmosphere has major concentration of ozone?

  1. Stratosphere

  2. Troposphere

  3. Mesosphere

  4. None of these
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A Correct answer
Explanation

The stratosphere contains approximately 90% of the atmosphere's ozone, concentrated in the ozone layer at 15-35 km altitude. This ozone absorbs harmful UV radiation, which is why temperature increases with altitude in this layer.

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