The phrase that accurately describes metamorphic rock is "formed by extreme heat and pressure." Metamorphic rocks are created when existing rocks (either igneous, sedimentary, or other metamorphic rocks) undergo metamorphism due to high temperatures and pressures, altering their mineral composition and structure.
The image shows metamorphic rock.
Which phrase accurately describes this rock?
randomly arranged grains
formed through sedimentation
formed by extreme heat and pressure
grains that do not split into layers
1 answer