When rocks stack up on each other, _____ metamorphism can occur.A.burialB.impactC.contactD.dynamic

The correct answer is A. Burial.

Here's why:

Metamorphism is the change of minerals or geologic texture in pre-existing rocks, without the rock melting into liquid magma. This change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.

A. Burial Metamorphism: This type of metamorphism occurs when rocks are buried deep under the surface of the earth. The pressure exerted by the overlying rocks and the heat from the earth's core cause the rocks to change. So, when rocks stack up on each other, burial metamorphism can occur.

B. Impact Metamorphism: This type of metamorphism occurs when a meteorite impacts the earth. The heat and shock from the impact cause the rocks to change.

C. Contact Metamorphism: This type of metamorphism occurs when magma comes into contact with the surrounding rocks. The heat from the magma causes the rocks to change.

D. Dynamic Metamorphism: This type of metamorphism occurs along fault lines where rocks are subjected to high levels of differential pressure.