Ozone located in the troposphere is _______.

Tropospheric ozone is ground-level ozone, which can harm people, plants, and other living organisms, so it is considered a pollutant. Stratospheric ozone is beneficial because it absorbs much of the Sun’s harmful ultraviolet radiation. Ozone is more concentrated in the stratosphere, so choice c is false and “all of the above” is not correct.

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