Advertisements
Advertisements
प्रश्न
Assertion (A): Oxygen plays a key role in the troposphere.
Reason (R): Troposphere is not responsible for all biological activities.
विकल्प
Both (A) and R are correct and (R) is the correct explanation of (A)
Both (A) and (R) are correct and (R) is not the correct explanation of (A)
Both (A) and (R) are not correct
(A) is correct but (R) is not correct
Advertisements
उत्तर
(A) is correct but (R) is not correct
APPEARS IN
संबंधित प्रश्न
What are the reactions involved for ozone layer depletion in the stratosphere?
The gaseous envelope around the earth is known as atmosphere. The region lying between an altitudes of 11 – 50 km is _______.
Ozone depletion will cause ______.
Which is considered to be the earth’s protective umbrella? Why?
What do you mean by ozone hole?
Which of the following statements is wrong?
Which of the following statements is correct?
On the basis of chemical reactions involved, explain how do chlorofluorocarbons cause thinning of ozone layer in stratosphere.
Ozone is a gas heavier than air. Why does ozone layer not settle down near the earth?
The statement that is not true about ozone is:
