ECOLOGY
HUMANS AND THE BIOSPHERE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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troposphere
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stratosphere
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ozone layer
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greenhouse gases
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Detailed explanation-1: -Ozone in the stratosphere protects life on Earth from harmful ultraviolet (UV) radiation and is therefore often called ‘good’ ozone. This is in contrast to ozone in the troposphere, the lowest layer of the atmosphere, where it is an air pollutant and can be harmful to humans, animals and vegetation.
Detailed explanation-2: -As sunlight passes through the atmosphere, all UVC and most UVB is absorbed by ozone, water vapour, oxygen and carbon dioxide.
Detailed explanation-3: -The ozone layer is the common term for the high concentration of ozone that is found in the stratosphere around 15–30km above the earth’s surface. It covers the entire planet and protects life on earth by absorbing harmful ultraviolet-B (UV-B) radiation from the sun.