pyq/2011/prelims/9

The formation of the ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?

(A) Presence of prominent tropospheric turbulence; and inflow of chlorofluorocarbons

(B) Presence of prominent polar front and stratospheric’ clouds; and inflow of chlorofluorocarbons

(C) The absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons

(D) Increased temperature in the polar region due to global warming