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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)
    Presence of prominent troposphere turbulence; and inflow of chlorofluorocarbons.
  • b)
    Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.
  • c)
    Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.
  • d)
    Increased temperature at polar region due to global warming.
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The formation of ozone hole in the Antarctic region has been a cause o...
As mid-May brings on the onset of winter, the Antarctic stratosphere cools and descends closer to the surface. The Coriolis effect (caused by the earths rotation) sets up a strong westerly circulation around the south pole, forming an oblong vortex which varies in size from year to year.
As temperatures in the lower stratosphere cools below -80'C, Polar Stratospheric Clouds (PSC's) start to form.
In the area over Antarctica, there are stratospheric cloud ice particles that are not present at warmer latitudes. Reactions occur on the surface of the ice particles that accelerate the ozone destruction caused by stratospheric chlorine.
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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)Presence of prominent troposphere turbulence; and inflow of chlorofluorocarbons.b)Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.c)Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.d)Increased temperature at polar region due to global warming.Correct answer is option 'B'. Can you explain this answer?
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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)Presence of prominent troposphere turbulence; and inflow of chlorofluorocarbons.b)Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.c)Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.d)Increased temperature at polar region due to global warming.Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about 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)Presence of prominent troposphere turbulence; and inflow of chlorofluorocarbons.b)Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.c)Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.d)Increased temperature at polar region due to global warming.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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)Presence of prominent troposphere turbulence; and inflow of chlorofluorocarbons.b)Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.c)Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.d)Increased temperature at polar region due to global warming.Correct answer is option 'B'. Can you explain this answer?.
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