In which layer would ozone depletion most affect ultraviolet-radiation protection?
Answer and explanation
Correct answer: Stratosphere
The governing concept is the protective role of the stratospheric ozone layer. Most atmospheric ozone is concentrated in the stratosphere, where it absorbs biologically harmful ultraviolet-B and ultraviolet-C radiation before that radiation reaches Earth’s surface. If stratospheric ozone decreases, more ultraviolet radiation can pass downward. The troposphere contains only a smaller, variable amount of ozone, while the mesosphere and exosphere are not the main ozone shield; therefore B is correct.
Frequently asked questions
What is the correct answer to this question?
Stratosphere
Why is this the correct answer?
The governing concept is the protective role of the stratospheric ozone layer. Most atmospheric ozone is concentrated in the stratosphere, where it absorbs biologically harmful ultraviolet-B and ultraviolet-C radiation before that radiation reaches Earth’s surface. If stratospheric ozone decreases, more ultraviolet radiation can pass downward. The troposphere contains only a smaller, variable amount of ozone, while the mesosphere and exosphere are not the main ozone shield; therefore B is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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