Q.

Desired ozone is found in which of the following layers of the atmosphere?

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a

Stratosphere

b

Mesosphere

c

Ionosphere

d

Troposphere

answer is A.

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Detailed Solution

  • Ozone is a gaseous layer in the earth's stratosphere at an altitude of about 10 km (6.2 miles) that contains a high ozone concentration and absorbs most of the sun's ultraviolet radiation. O3 is the chemical formula of ozone gas.
  • Ozone gas formed in the lower levels of the atmosphere i.e., the troposphere due to various forms of pollution is highly toxic in nature. However, ozone present in higher levels of the atmosphere i.e., the stratosphere protects us from harmful ultraviolet radiation. This is considered desired ozone.
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