The weaker region in the mantle over which earth's outer shell lies

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

True or false graphs must include scales that increase by the same amount

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply