Even if all CFC production could be stopped today,the ozone depletion problem in the stratosphere would continue for many years because
A)some nations would not follow the ban.
B)CFCs are produced naturally in the troposphere.
C)CFCs are widespread and very stable in the troposphere.
D)ozone is naturally depleted by sunlight.

Question

Quizplus · Accepted Answer

CFCs are very stable and have a long atmospheric lifetime, meaning they can persist in the atmosphere for decades to centuries. As a result, even if all CFC production stopped today, the CFCs already released into the atmosphere would continue to deplete ozone for many years to come. Additionally, even though CFC production has been banned in most countries, there may still be some illegal production and use of CFCs, which could continue to contribute to ozone depletion. Natural production of CFCs in the troposphere is not a major contributor to ozone depletion in the stratosphere, and ozone depletion is not a natural process caused by sunlight but rather a result of human activities.

Even If All CFC Production Could Be Stopped Today,the Ozone