beach erosion ozone depletion overfishing air pollution
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Coal is used for generating about 53% of the electrical energy in the United States. Which of these environmental issues is directly contributed to by the burning of coal?
Possibilities:
- beach erosion
- ozone depletion
- overfishing
- air pollution

air pollution