A "FORCE" is required to cause acceleration or cause an object to move.
Answer: This is the definition if that's what you want.
Explanation:The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system's mass cannot change, so quantity can neither be added nor be removed.
Answer:
decrease i had the same question in 8th grade u must be in ninth
Explanation:
ohh im not sure but i think its A
