Q.
Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of
I. its escape into the outer stratosphere.
II. Round-worm has separate sexes
III. the trapping of air in the polar ice caps.
Which of the statements given above is/are correct?
[A]
I and II
[B]
II only
[C]
II and III
[D]
III only
Answer & Explanation
Option: [B]