Question

Volume of an object is the _______ of space it fills

Volume of a solid is the __________ of space it occupies

Answer 1

"amount"

Explanation:

Volume is essentially the measure of how much space an object (usually 3D) occupies. This "measure of how much" is the same as saying "amount". So, the volume of an object/solid is the amount of space it fills/occupies.

Answer 2

Amount

Explanation:

Volume of an object is the measure of amount of space it occupies/fills