Question

Consider the following statements regarding the Ozone layer and its formation.
$1$. The upper part of the earth's atmosphere, between $10$ and $50$ km above the earth surface called stratosphere contains a thin layer of ozone.
$2$. This ozone layer serves as a natural filter for blocking incoming ultra violet radiation from the sun.
Which of the statements given is/are correct?

• A. $1$ only
• B. $2$ only
• C. Both $1$ and $2$
• D. Neither $1$ nor $2$

Answer 1

The correct option is C Both $1$ and $2$

The stratosphere continues from 10 km to about 50 km. Most atmospheric ozone is concentrated in a layer in the stratosphere, about 15-30 kilometers above the Earth's surface. This ozone layer in the Earth’s stratosphere absorbs most of the Sun’s ultraviolet (UV) radiation that may cause skin cancer. Stratospheric Ozone is not harmful, but its presence on land is harmful.