The answer to this question is slate. Slates are homogenous
metamorphic rock that came from a sedimentary rock that was formed thru metamorphism.
Slates are rocks that are used as roofs and floorings because slates are considered
to be durable and because of the fine features of this rocks it is more
presentable.
I just answered this an the correct answer is B the study of people and their environments <span />
