Which description could describe the motion of the object between 7 and 12 seconds (the highlighted area)? a. The object is moving at a constant, negative, velocity. It is negative because it is moving back towards the origin.

b. The object is at rest.

c. The object is going down a hill with a changing speed.

d. The object is speeding up, as it travels back towards the origin.

A  it is still at the same passe and it is going back down

Explanation:

truck y has a greater velocity than truck x.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.