decreasing the amount of fresh water increasing the number of animal species decreasing the average yearly temperatures increasing carbon dioxide levels in the atmosphere
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: The need for farmland in Brazil has led to the cutting of the rain forests in the Amazon. Cutting trees in the Amazon rain forest might have a global effect by
Possibilities:
- decreasing the amount of fresh water
- increasing the number of animal species
- decreasing the average yearly temperatures
- increasing carbon dioxide levels in the atmosphere

increasing carbon dioxide levels in the atmosphere