Answer:
All of the above.
Explanation:
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.
This process is not reversible and a change of energy that is sometimes heat is given off.
Answer:
C
Explanation:
Mostly all of them but most likely C
I think your answer would be that it increased
A gland is an organ that excretes chemical fluids to discharge into the surroundings or for use in the body.