Advertisements
Advertisements
Question
Assertion (A): Oxygen plays a key role in the troposphere.
Reason (R): Troposphere is not responsible for all biological activities.
Options
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
Solution
(A) is correct but (R) is not correct
APPEARS IN
RELATED QUESTIONS
What are the reactions involved for ozone layer depletion in the stratosphere?
Which is considered to be the earth’s protective umbrella? Why?
On the basis of chemical reactions involved, explain how do CFC’s cause depletion of ozone layer in stratosphere?
What do you mean by ozone hole?
Which of the following statements is wrong?
Which of the following statements is correct?
Ozone is a toxic gas and is a strong oxidising agent even then its presence in the stratosphere is very important. Explain what would happen if ozone from this region is completely removed?
Assertion (A): Ozone is destroyed by solar radiation in upper stratosphere.
Reason (R): Thinning of the ozone layer allows excessive UV radiations to reach the surface of earth.
The statement that is not true about ozone is:
