What is the role of polar stratospheric clouds (PSCs) on the destruction of ozone?

Question

Quizplus · Accepted Answer

Chemical reactions occur on the polar stratospheric clouds that convert molecules that do no damage to those that deplete ozone. For example, PSCs enable the conversion of chlorine reservoir species, like hydrochloric acid (HCl) and chlorine nitrate (ClONO2), into forms that are more reactive with ozone, such as chlorine monoxide (ClO) and atomic chlorine (Cl). These reactive species can then participate in ozone-destroying reactions.

What Is the Role of Polar Stratospheric Clouds (PSCs) on the Destruction