Multiple choice general knowledge history

The depletion of which of the following can contribute to stronger UV rays reaching earth?

  1. Ozone layer

  2. Oxygen

  3. Carbon Dioxide

  4. Clouds
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A Correct answer
Explanation

The ozone layer in the stratosphere absorbs harmful ultraviolet (UV) radiation from the sun. When this layer is depleted by chemicals like CFCs, more UV rays reach Earth's surface, increasing skin cancer risks and harming ecosystems. Oxygen, CO2, and clouds do not provide this UV-blocking function.

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