using too much fertilizer in agriculture cutting down large areas of tropical forests burning fossil fuels such as coal and gasoline using chemicals that destroy ozone in the stratosphere
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which human activity contributes to the formation of acid rain?
Possibilities:
- using too much fertilizer in agriculture
- cutting down large areas of tropical forests
- burning fossil fuels such as coal and gasoline
- using chemicals that destroy ozone in the stratosphere

burning fossil fuels such as coal and gasoline