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In the upper atmosphere, the ultra-violet light breaks off a free chlorine atom ...


Question

In the upper atmosphere, the ultra-violet light breaks off a free chlorine atom from chlorofluorocarbon molecule. The effect of this is that the free chlorine atom will

Options

A) be very reactive and will attack ozone

B) be non-reactive and will not attack ozone

C) not change the level of ozone in the atmosphere

D) increase the level of ozone in the atmosphere


The correct answer is A.

Explanation:

CFCs (Chlorofluorocarbons) have a lifetime in the atmosphere of about 20 to 100 years, and consequently one free chlorine atom from a CFC molecule can do a lot of damage, destroying ozone molecules for a long time.


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Dicussion (1)

  • CFCs (Chlorofluorocarbons) have a lifetime in the atmosphere of about 20 to 100 years, and consequently one free chlorine atom from a CFC molecule can do a lot of damage, destroying ozone molecules for a long time.

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