Question

what is ozone hole ​

Answer 1

Answer:

ozone hole is drastic depletion of ozone in the ozone layer as present over Antarctica during polar spring.

Answer 2

Answer:

Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere, and a much larger springtime decrease in stratospheric ozone around Earth's polar regions. The latter phenomenon is referred to as the ozone hole.