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Harmful UV radiations emitted from the sun are prevented from reaching the earth by the presence of ozone in the
  • a)
    mesosphere
  • b)
    thermosphere
  • c)
    stratosphere
  • d)
    troposphere
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Harmful UV radiations emitted from the sun are prevented from reaching...
Stratosphere layer strongly absorb harmful UV-radiations (λ. 255 nm).
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Most Upvoted Answer
Harmful UV radiations emitted from the sun are prevented from reaching...
Ozone is present in the Stratosphere .....& its thickness is measured in dobsons unit...
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Harmful UV radiations emitted from the sun are prevented from reaching...
Explanation:

Ozone is a molecule consisting of three atoms of oxygen and is present in the stratosphere region of the atmosphere. It is formed by the action of ultraviolet radiation from the sun on the oxygen molecule in the atmosphere. The ozone layer acts as a protective shield for the Earth's surface from the harmful ultraviolet (UV) radiations.

Working of Ozone Layer:

The ozone layer lies approximately 10 to 50 km above the Earth's surface and absorbs most of the UV radiations that are harmful to living organisms. When the UV radiation enters the ozone layer, it is absorbed by the ozone molecules and converted into heat energy. This process is called the ozone-oxygen cycle.

Location of Ozone Layer:

The ozone layer is present in the stratosphere region of the atmosphere. The stratosphere is the second layer of the Earth's atmosphere and is located above the troposphere. The stratosphere extends from about 10 to 50 km above the Earth's surface.

Effects of Ozone Depletion:

The depletion of the ozone layer can have serious consequences for living organisms on Earth. The harmful UV radiations can cause skin cancer, cataracts, and other health problems in humans and animals. It can also affect the growth of plants and can lead to a decrease in crop yields.

Conclusion:

In conclusion, the ozone layer present in the stratosphere region of the atmosphere acts as a protective shield for the Earth's surface from the harmful UV radiations. The depletion of the ozone layer can have serious consequences for living organisms on Earth. Therefore, it is important to take measures to protect the ozone layer from further depletion.
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Harmful UV radiations emitted from the sun are prevented from reaching the earth by the presence of ozone in thea)mesosphereb)thermospherec)stratosphered)troposphereCorrect answer is option 'C'. Can you explain this answer?
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