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Question

Which of the following is absorbed by the ozone layer?


A

γ-rays

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B

Visible light

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C

Radio waves

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D

Ultraviolet rays

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Solution

The correct option is D

Ultraviolet rays


  1. The molecule ozone is made up of three oxygen atoms O3. When UV light with a wavelength between 240 and 320 nanometers meets an ozone molecule, it absorbs the energy and converts it into ozone O3 alterations to O2and O.
  2. The O atom quickly joins with another O2 forming a molecule O3 and is able to absorb UV rays.

Thus, the correct answer is an option (D).


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