Question

Part of ozone is destroyed over poles during

• A. Polar spring
• B. Winter
• C. Summer
• D. Period of snow fall

Answer 1

The correct option is A Polar spring

Polar spring, also known as the Antarctic Spring is the period from late August to early October and the strong westerlies circulate around the Antarctic continent creating a polar vortex. The polar vortex results in the formation of the polar stratospheric clouds which trap most of the gases including the ozone-depleting factors like CFCs, methyl bromide etc.

Hence, the correct answer is 'Polar Spring'.