The chemical constituent that absorbs UV radiation in the stratosphere of Earth's atmosphere,thereby heating these layers to relatively high temperatures,is:

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Ozone (O₃) is the chemical constituent that absorbs UV radiation in the stratosphere of Earth's atmosphere, thereby heating these layers to relatively high temperatures. It acts as a shield, preventing harmful UV radiation from reaching the Earth's surface. The depletion of the ozone layer due to human emissions of chlorofluorocarbons (CFCs) has led to concerns about increased UV radiation and its impact on human health and the environment.

The Chemical Constituent That Absorbs UV Radiation in the Stratosphere