Speed can be shown on a graph of position versus time, and acceleration can be shown on a graph of speed versus time.
Answer:
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.
Explanation:
The answer is D. Mountains in North America appear to be the same as those in Northern Europe
