Damage to the ozone shield over the united states is likely to cause

Chlorofluorocarbons (CFCs) chemicals contain carbon, chlorine and fluorine and is t so expensive at the same time it’s not flammable, the reason why it is mainly used in business such as refrigerators and plastics. However, these chemicals destroys our stratosphere, the second layer of the Earth’s atmosphere and protects us by blocking the ultraviolet radiation (UV Light). This type of radiation can seep through organisms skins and can leave destructive effects on DNA molecules which will also cause skin cancer.

The answer is one amu.

The answer on edgenuity is b