I think it should be 'They are balanced' if I'm not wrong
Answer:
should be tested by the scientific community
Answer: D Although the total energy remains constant, nonrenewable fuels convert chemical energy into forms that are difficult or impossible to use again.
Explanation:
The first law of thermodynamics says that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.
Psychology on Egenuity Oct 5th 2018 says answer is C