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Standard XII
Chemistry
Ozone Layer Depletion
Question

Depletion of which gas in the atmosphere can lead to an increase incidence of skin cancers?
  1. Nitrous oxide
  2. Ozone
  3. Ammonia
  4. Methane

A
Ozone
B
Methane
C
Nitrous oxide
D
Ammonia
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Solution
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The ozone layer or ozone shield refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere.
Excessive exposure can also cause cataracts, immune system suppression, and genetic damage, resulting in problems such as skin cancer.

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Depletion of which gas in the atmosphere can lead to an increase incidence of skin cancers?
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Multiple Choice Questions
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers.
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Q3

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Which gas causes the depletion of the ozone layer in the upper atmosphere of the Earth?


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Q5
Which of the following options are correct regarding given assertion and reason?

Assertion [A] : An increase in carbon dioxide in the atmosphere leads to global warming.

Reason [R] : Carbon dioxide is a greenhouse gas.
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