Question

Formation of ozone hole is maximum over _____________.
A)India
B)Australia
C)Antarctica
D)Europe

Answer 1

Hint: Ozone depletion consists of two related events observed since the late 1970s: a gradual reduction in the overall amount of ozone in the Earth's atmosphere by about four percent, and a much greater decrease in stratospheric ozone across the polar regions of Earth in the springtime. The ozone hole is regarded as the latter phenomenon.

Complete answer:
The Antarctic ozone hole is a region in the Antarctic stratosphere where the latest ozone levels have fallen to 33% of their pre-1975 levels. The ozone hole occurs from September to early December during the Antarctic spring, when powerful westerly winds begin to circulate across the continent and establish an atmospheric container.
The presence of chlorine-containing source gases is the main cause of ozone depletion (primarily CFCs and related halocarbons). These gases dissociate in the presence of UV light, releasing chlorine atoms, which then go on to catalyse ozone death.

Lets see options :
India : There is no data to demonstrate complete ozone depletion over India, according to S K Srivastava, head of the National Ozone Centre in New Delhi thus this option is wrong.
Australia : there are signs of depletion of ozone layer over australia but its not maximum formation thus this option is wrong too.
Antarctica : ozone depletion is highest over Antarctica because of climatic conditions thus this option is correct.
Europe : Antarctica has maximum formation of ozone holes thus this option is wrong too.

Hence, the correct answer is option (C)

Note: Since the ozone layer absorbs UVB ultraviolet light from the sun, the loss of the ozone layer raises the amount of surface UVB (all the same), which could lead to damage, including an increase in skin cancer.
In 1994, the General Assembly of the United Nations voted to declare September 16 as the International Ozone Layer Preservation Day, or 'World Ozone Day,'