Ozone layer depletion is believed to be caused chiefly by
A)ultraviolet (UV)radiation.
B)buildup of carbon dioxide.
C)particulate pollution.
D)chlorofluorocarbon (CFC)emissions.

Question

Quizplus · Accepted Answer

Chlorofluorocarbon (CFC) emissions have been identified as the main cause of ozone layer depletion. When these chemicals are released into the atmosphere, they break down ozone molecules, leading to a thinning of the ozone layer. UV radiation also plays a role in this process, but it is not the primary cause. Carbon dioxide and particulate pollution have their own impacts on the environment, but they are not directly linked to ozone depletion.

Ozone Layer Depletion Is Believed to Be Caused Chiefly by