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.
The most logical answer sounds like D.
If it grows underwater then of course it's able to withstand water. <span />
Uniformitarianism
fossils
radioactive decay
48 million
after
The youngest age of the shale is 910 ka. According to the principle of inclusions, the shale formed before the tephra, so the tephra must be younger than 910 ka.