Which one of the following is a wrong statement (a) Most of the forests have been lost in tropical areas
Which one of the following is a wrong statement
(a) Most of the forests have been lost in tropical areas
(b) Ozone in upper part of atmosphere is harmful to animals
(c) Greenhouse'effect is a natural phenomenon
(d) Eutrophication is a natural phenomenon in freshwater bodies
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1 Answers
Correct option (b) Ozone in upper part of atmosphere is harmful to animals
Explanation
Ozone (O3) is an isotope of oxygen which exists in so-called ozone layer at a height of about 15-60 km in the middle and upper stratosphere and lower mesosphere. This ozone layer absorbs UV-rays of longer wavelength and protects life on Earth from damaging effects of these radiations.
Ozone in the lower atmosphere (troposphere) is regarded as a pollutant.
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