Q. The Ozone layer protects us from _____:
Answer: Ultra-Violet rays
Notes: The ozone layer refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It absorbs 97–99% of the Sun's medium frequency ultraviolet light (from about 200 nm to 315 nm wavelength), which otherwise would potentially damage exposed life forms near the surface.

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