Which substance in the atmosphere absorbs most of the ultraviolet rays?
Understand the Problem
The question is asking which substance in the atmosphere absorbs most of the ultraviolet (UV) rays that reach Earth's surface.
Answer
Ozone O3
The final answer is Ozone O3.
Answer for screen readers
The final answer is Ozone O3.
More Information
The ozone layer absorbs the majority of UVB and all of UVC radiation, protecting life on Earth from harmful UV rays.
Tips
A common mistake is confusing the roles of different atmospheric gases. Ozone is primarily responsible for absorbing harmful ultraviolet rays.
Sources
- Basic Ozone Layer Science - EPA - epa.gov
- Ozone and You - Ozone Secretariat - UN Environment Programme - ozone.unep.org
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