Question

Which of the following changes igneous or sedimentary rock into metamorphic rock?

A.
heat and pressure

B.
heat and weathering

C.
water and weathering

D.
water and pressure

Answer 1

Metamorphic rock must first turn into sediment through uplift, weathering, erosion and deposition before the sediments can undergo lithification and become sedimentary rock. Further compaction, pressure, and heat can turn it into metamorphic rock. In order to change into igneous rock it would need to be buried so deep in the earth that the heat partially melts the metamorphic rock forming magma. Then the magma would need to ascend, cool, and undergo recrystallization to form igneous rock.

Answer 2

welcome to open study btw

Answer 3

thank u

Answer 4

yw

Answer 5

so what is it @bellablain

Answer 6

im guessing its heat and pressure