Question

2. Which of the following substances present in air conditioners and refrigerators is
harmful and responsible for ozone depletion?
(a) chlorobenzene
(b) chlorine
(c) nitrogen
(d) chlorofluorocarbons
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Answer 1

Answer:

CFCs contribute to ozone depletion in the upper atmosphere. A chlorofluorocarbon (CFC) is an organic compound that contains only carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, and propane.

Explanation:

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Answer 2

Answer:

(d) chloroflurocarbons