Question

which of the following could result in the formation of metamorphic rocks?
a sedimentation
b increase in temperature and pressure
c cooling and crystallization of magma
d weathering

Explanation:

• Sedimentation forms sedimentary rocks, not metamorphic.
• Metamorphic rocks form when existing rocks are altered by increased temperature and pressure, changing their mineral structure without melting.
• Cooling and crystallization of magma forms igneous rocks.
• Weathering breaks down rocks into sediments, a precursor to sedimentary rocks.

Answer:

b. Increase in temperature and pressure