Question

What is a closed system? A. A system that allows energy and mass to move in or out of it B. A system that does not allow energy or mass to move I. Or out of it C. A system that allows energy to move in and out but not mass D. A system that allows mass to move in and out but not energy

Answer 1

C

Step-by-step explanation:

Answer 2

A closed system obeys the conservation laws in its physical description energy only going in and out so the answer is C

Step-by-step explanation:

hope it helps