English

______ present in air protects life on the earth from the harmful effects of ultraviolet rays from the sun. -

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Question

______ present in air protects life on the earth from the harmful effects of ultraviolet rays from the sun.

Options

  • Oxygen

  • Nitrogen

  • Ozone

  • Hydrogen

MCQ
Fill in the Blanks

Solution

Ozone present in the air protects life on the earth from the harmful effects of ultraviolet rays from the sun.

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