Answer:
Step-by-step explanation:
The chlorine is reacting with ozone to form oxygen gas and chlorine oxide.
then chlorine oxide is reacting with oxygen to form oxygen gas and chlorine (gas?).
and the bottom is the forming of oxygen gas form ozone.
This whole thing is showing you why there is global warming. The ozone helps us to block the rays of the sun, but the formation of the ozone is slowed down done to the reaction with chlorine.