MolSynapsequestion bank
MolSynapse / Question bank / Environmental Chemistry / Ozone depletion and greenhouse effect
JEE Main levelSingle correct optionDifficulty 2 of 3ev082

The Antarctic stratosphere shows far greater ozone loss than the Arctic mainly because

  1. Ait contains more CFCs than any other place
  2. Bit receives more sunlight in winter
  3. Cit gets so cold that a stable vortex and polar stratospheric clouds persist
  4. Dit has higher concentration of atomic oxygen

Answer: C

The Antarctic winter vortex isolates the air and allows extremely low temperatures, so polar stratospheric clouds form widely and activate chlorine. The Arctic is usually warmer and more disturbed.
Practice Environmental Chemistry More on Ozone depletion and greenhouse effect

More questions on Ozone depletion and greenhouse effect