Which of the following is the primary cause of stratospheric ozone depletion?

Chlorine atoms in CFCs

Answer A: Chlorine atoms in C F Cs
A

Sulfur dioxide in photochemical smog

Answer B: Sulfur dioxide in photochemical smog
B

Mercury released from the combustion of coal

Answer C: Mercury released from the combustion of coal
C

PANS from automobile exhaust

(The answer is A)

Explanation: Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). ... CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.

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Luisvaschettogo Luisvaschettogo · Answer 2

Chlorine atoms in Chlorofluorocarbons (CFCs) are the primary cause of stratospheric ozone depletion.

What is stratospheric ozone depletion?

The expression 'ozone depletion' makes reference to the elimination of the ozone layer that protects us from UV rays.

Both chlorine atoms and bromine atoms can remove Ozone (O3) molecules when they interact with these molecules.

It is for that reason that products containing chlorine atoms and bromine must be avoided.

In conclusion, Chlorine atoms in CFCs are the primary cause of stratospheric ozone depletion.

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