The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of
a. conservation of energy.
b. conservation of matter.
c. atomic disintegration.
d. definite proportions.

your answer is b. conservation of matter.

i just took the test

b. Conservation of matter.

Explanation:

Law of conservation of matter states that matter can neither be created nor destroyed by means of chemical reaction but can be changed from one form to another.

It means that the amount of matter remains the same after a chemical change.

petroleum? coal maybe?

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.