Answer:
b. negative
Explanation:
neutrons have a negative charge and protons have a proton has a positive charge
Energy can not be created or destroyed but can change from one form to another.
example: as a roller coaster cart loses height the more speed it gains, the potential energy is transferred into kenetic energy
I think it is option (C).
If the answer is helpful then mark me as brainly.
C. Amount of oxygen
The others either change but don’t decrease or they increase.
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