Question

what causes metamorphic rocks to form?
compaction and cementation
melting and cooling
weathering and erosion
heat and pressure

Explanation:

To determine what causes metamorphic rocks to form, we analyze each option:

• Compaction and cementation form sedimentary rocks.
• Melting and cooling form igneous rocks.
• Weathering and erosion break down rocks, not form metamorphic ones.
• Metamorphic rocks form from existing rocks (sedimentary, igneous, or other metamorphic) that undergo changes due to heat and pressure, altering their mineral structure and texture.

Answer:

D. Heat and pressure