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NDA 2016 GAT · General Knowledge · Physical Geography · medium

The ozone layer, which protects living organisms from harmful ultraviolet radiation, is found in the

Single correct option

The ozone layer, which protects living organisms from harmful ultraviolet radiation, is found in the
  1. A. troposphere
  2. B. stratosphere
  3. C. mesosphere
  4. D. thermosphere
Show answer and solution

Answer: (B) stratosphere

Most atmospheric ozone lies between about 15 and 35 km in the stratosphere, where it absorbs UV-B and UV-C. The troposphere holds weather and ground-level ozone, which is a pollutant. Chlorofluorocarbons deplete the stratospheric ozone, which led to the Montreal Protocol.
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Original question written in the NDA 2016 GAT pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake