The long-ago deposited plant and animal remains, now buried, have been compacted and transformed into coal and oil. The use of these fossil fuels has both positive and negative consequences. All BUT one is a negative consequence of using fossil fuels.
Responses
A contributes to acid raincontributes to acid rain
B contributes to global warmingcontributes to global warming
C requirement for photosynthesisrequirement for photosynthesis
D formation of carbonic acid in the atmosphere