A woman riding a ski lift with a constant velocity of 2.1 m/s up to the top of the hill suddenly hears a loud noise. As she turns to see a fighter jet doing acrobatics involving sharp turns, she accidentally knocks her skis off the lift. In the moment afterwards, which two objects have the same inertial frame of reference? A. The skier and her skis

B. The skier and the lift

C. The skis and the ground

D. The pilot and the jet

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.