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]

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