<human>: How can I tell if a rock is metamorphic or sedimentary?
<bot>: You can tell if a rock is metamorphic or sedimentary by looking at its physical characteristics. Metamorphic rocks are typically composed of minerals that have been recrystallized and re-arranged, while sedimentary rocks are made up of particles from the ground that have been cemented together. Additionally, you can look for evidence of deformation in metamorphic rocks, such as foliation or lineation, which is caused by the movement of the rock during the process of metamorphism.