Question

When rocks return to the Earth's mantle, they can eventually melt and become magma. _______ and _______ are the main factors that control this change. A. Erosion; weathering B. Friction; cold C. Contraction; expansion D. Pressure; heat

Answer 1

Answer:D

Step-by-step explanation:

Answer 2

D

Step-by-step explanation:

To create magma out of the rock, it needs to become very hot, it does this by pushing and pushing on it until it becomes the heat it is. As soon as it hits the air, it begins to get hard again, as we see the black tar on the top of volcanos.