Answer:
Salt dissolving
Explanation:
Dis solving salt in water doesn't change it's chemical composition
I thinks it’s A, tell me if you get it right
Most likely climbing up the mountain
Answer:
Its velocity
Explanation:
Velocity is speed with a direction.
Speed is the rate at which someone or something is able to move or operate.
In the question its telling us that the bus is going 56 miles per hour but it aslo gives us a direction, in this case is southwest.