Question

what type of rock made from heat and pressure is primarily classified by texture and composition?
sedimentary
igneous
metamorphic
organic

Explanation:

Metamorphic rocks form from pre - existing rocks due to heat and pressure. They are classified by texture and composition. Sedimentary rocks form from sediment accumulation, igneous rocks from cooling of magma or lava, and "organic" is not a main rock type in this context.

Answer:

C. Metamorphic