One of the main function of the earth's ozone layer is to ?
- A. Prevent global warming
- B. Filter out ultraviolet rays
- C. Absorb pollution
- D. All of the above
Explanation
Stratospheric ozone absorbs much of the Sun’s harmful ultraviolet radiation, especially UV-B and UV-C. It is not correctly described as a general pollution absorber or a direct preventer of global warming.
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