plants give off oxygen and take in carbon dioxide and animals take in oxygen and give off carbon dioxide.
Answer:
Adipocere
Explanation:
Adipocere 'is caused by hydrolysis and hydrogenation of adipose tissue, leading to the formation of a greasy or waxy substance if of recent origin.
The answer cannot be b, because that would be volume. It also cannot be c because that would be mass, which leaves the answer to be a, the amount of matter that makes an object.