Match each type of rock with the description of how it forms.
metamorphic rocks
layers of sediment dry together
sedimentary rocks
magma or lava cools and solidifies
igneous rocks
existing rocks are exposed to extreme
conditions

metamorphic-existing rocks are exposed to extreme conditions

sedimentary rock-layers of sediment dry together

igneous rock-magma or lava cools and solidifies.

Explanation:

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.