An "ozone hole" is
A) a region centered on the equator where ozone levels are always very low because of destruction by direct sunlight.
B) a region of the stratosphere, often above the South Pole, where ozone levels occasionally drop to very low levels.
C) the name given to small pits or holes on the aluminum surface of an aircraft, etched by the corrosive ozone encountered in the stratosphere and requiring regular maintenance.
D) a permanent region of very low ozone content in the stratosphere centered over the South Pole that has been there for thousands of years; the resulting transparency to UV radiation accounts for the lack of life-forms there.

Question

Quizplus · Accepted Answer

The "ozone hole" refers to a phenomenon where ozone levels in the stratosphere above the South Pole (and occasionally the North Pole) drop significantly, usually during the spring months. This is not a permanent feature but a recurring event linked to human-made chemicals like chlorofluorocarbons (CFCs).

An "Ozone Hole" Is