Question

Which layer of the atmosphere is rich in ozone that absorbs ultraviolet radiation from the sun?

• A. Exosphere
• B. Troposphere
• C. Stratosphere
• D. None of these

Answer 1

The correct option is C

Stratosphere

Explanation for correct option:

(C) Stratosphere

Layer of Atmosphere:

• The Earth's atmosphere is divided into five major layers and several secondary levels.
• The troposphere, stratosphere, mesosphere, thermosphere, and exosphere are the primary layers, from lowest to highest.
• Stratosphere

• This layer contains the ozone layer, which has the capacity to absorb and scatter solar UV rays.
• The stratosphere contains the vital ozone layer.
• The ozone layer shields us from the sun's harmful ultraviolet rays (UV).
• In fact, the ozone layer absorbs the majority of the UV energy that the sun emits. Life as we know it will be impossible under this layer of security.

Explanation for incorrect options:

(A) Exosphere

• This is our atmosphere's uppermost limit.
• It stretches up to $10,000$ kilometres from the top of the thermosphere.

(B) Troposphere

• This layer starts at the surface of the Earth and rises to a height of $8$ to $14.5$ kilometres.
• The densest part of the atmosphere lies here.

So, Option (C) is correct. The ozone layer, which has the ability to absorb and deflect solar UV rays, is found in the stratosphere.