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Q.

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

A Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.
B Increased temperature at polar region due to global warming.
C Presence of prominent tropo- spheric turbulence; and inflow of chlorofluorocarbons.
D Present of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.
Answer & Explanation
Option: [D]

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