State two problems resulting from the depletion of the ozone layer by reaction with chlorofluorocarbons (CFCs).

Increased UV Radiation: The primary function of the ozone layer is to absorb the majority of the sun's harmful ultraviolet (UV) radiation. When the ozone layer is depleted by CFCs, more UV radiation reaches the Earth's surface. This can lead to a higher incidence of skin cancers and eye cataracts in humans. It can also harm animals, particularly those living in or near water, as UV radiation can penetrate the upper layers of bodies of water and disrupt aquatic ecosystems.

Damage to Plants and Crops: Increased UV radiation can also have harmful effects on plants, including reduced growth, photosynthesis, and flowering. This can lead to lower crop yields, affecting food supply and agricultural economies. Certain types of phytoplankton, the base of several aquatic food chains, are also particularly sensitive to UV radiation and can be adversely affected by its increase.