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In Biology / College | 2025-07-05

What is the main function of the ozone layer above Earth's surface?

A. It reflects all sunlight away from Earth
B. It traps heat and contributes to global warming
C. It absorbs harmful ultraviolet (UV) radiation from the Sun
D. It allows more ultraviolet light to reach Earth's surface

Asked by mirandap1998

Answer (2)

The ozone layer primarily functions to absorb harmful ultraviolet (UV) radiation from the Sun, protecting both human health and the environment. It filters out 97% to 99% of UV radiation, preventing adverse effects like skin cancer. The ozone layer does not contribute to global warming or reflect sunlight away from Earth. ;

Answered by GinnyAnswer | 2025-07-05

The main function of the ozone layer is to absorb harmful ultraviolet (UV) radiation from the Sun, protecting human health and the environment. It blocks about 97% to 99% of UV rays, preventing issues such as skin cancer and ecological damage. Thus, the correct answer to the student's question is C: It absorbs harmful ultraviolet (UV) radiation from the Sun.
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Answered by Anonymous | 2025-08-17

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