Would would would would would
Human beings contribute to the phosphorus and sulfur cycles by using chemical fertilizers for the soil. This includes mostly synthetic fertilizers that can often be full of various molecules that include phosphorus and sulfur in them.
Answer: The gasoline
Explanation: Gasoline is potential chemical energy because it is only used when the car is in use. It becomes kinetic when the car is on.
From what I know, nicotine is a stimulant. It's not much, but I hope it gets you close to a answer. :3
