What is the ozone layer and why is it important?

A) A layer of oxygen at ground level

B) A layer of ozone in the stratosphere that absorbs harmful UV radiation

C) A type of cloud formation

D) A layer of nitrogen in the atmosphere

Explanation

The ozone layer is a region in Earth's stratosphere containing high concentrations of ozone (O3) that absorbs most of the Sun's harmful ultraviolet radiation, protecting life on Earth.

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