What does conservation of mass mean?

Question

Responses

Mass can be created or destroyed.
Mass can be created or destroyed.

Mass cannot be destroyed, but it can be created.
Mass cannot be destroyed, but it can be created.

Mass cannot be created or destroyed.
Mass cannot be created or destroyed.

Mass cannot be created, but it can be destroyed.
Mass cannot be created, but it can be destroyed.

Answer 1

The correct response is:

Mass cannot be created or destroyed.

This principle, known as the conservation of mass, states that in a closed system, the total mass remains constant over time, regardless of the processes acting inside the system.