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प्रश्न
Which is considered to be the earth’s protective umbrella? Why?
उत्तर
At high altitudes to the atmosphere consists of a layer of ozone (O3) which acts as an umbrella or shield for harmful UV radiations. It protects us from harmful effects such as skin cancer. UV radiation can convert molecular oxygen into ozone as shown in the following reaction.
\[\ce{O2(g) ->[uv] O(g) + O(g)}\]
\[\ce{O(g) + O2(g) ->[uv] O3(g)}\]
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संबंधित प्रश्न
What are the reactions involved for ozone layer depletion in the stratosphere?
Ozone depletion will cause ______.
Assertion (A): Oxygen plays a key role in the troposphere.
Reason (R): Troposphere is not responsible for all biological activities.
On the basis of chemical reactions involved, explain how do CFC’s cause depletion of ozone layer in stratosphere?
Which of the following statements is correct?
Ozone is a toxic gas and is a strong oxidising agent even then its presence in the stratosphere is very important. Explain what would happen if ozone from this region is completely removed?
How is ozone produced in stratosphere?
Ozone is a gas heavier than air. Why does ozone layer not settle down near the earth?
Polar stratospheric clouds facilitate the formation of ______.
