Question

Country contributed maximum to hole formation in ozone layer is

• A. Germany
• B. Russia
• C. USA
• D. Japan

Answer 1

The correct option is C USA

Ozone layer depletion

1. The main cause of ozone depletion and the formation of the ozone hole is the presence of ozone depleting substances (ODS) like chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFCs), halons etc.
3. These substances used in foam-blowing agents, refrigerants, solvents and propellants are transported into the stratosphere.
5. They release chlorine atoms which catalyse the breakdown of ozone, thus depleting the ozone layer.

USA and ozone depletion

The country that has contributed the maximum to the ozone hole formation is the United States of America as it consumed the most ODS.

Final answer

(A) USA