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# AP® Environmental Science

Free Version
Easy

APES-N@\$ZLO

The normal ozone cycle in the stratospheric ozone layer can be represented by these simple equations:

$$O + { O }_{ 2 } \rightarrow { O }_{ 3 }\\\ { O }_{ 3 } \rightarrow { O }_{ 2 } + { O }$$

The ozone production cycle in the stratosphere is disrupted by chloride radicals from chlorofluorocarbons leading to ozone depletion, as seen in the equations below:

$${ O }_{ 3 }+{ Cl } \rightarrow ClO + { O }_{ 2 }\\\ ClO + O \rightarrow Cl + { O }_{ 2 }$$

This ozone depleting process allows an increase of which type of radiation to the earth's surface?

A

B