Freon gas causing stratosphere O3 depletion is mainly released from
A
Refrigerators
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B
Automobiles
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C
Thermal power plants
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D
Steel industry
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Solution
The correct option is B Refrigerators
Freon gas is a type of chlorofluorocarbon (CFC) i.e., it contains carbon and hydrogen along with fluorine and chlorine. It is used as a refrigerant. CFCs release chlorine atoms in the atmosphere that react with ozone and cause its depletion. Hence, Freon causes ozone depletion and it is released from refrigerators.