WVGSA Grade 8 Science Practice Questions - West Virginia General Summative Assessment Grade 8 Science Exam

According to the Law of Superposition, what is the relative age of undisturbed horizontal sedimentary rock layers?

The oldest rock layers are located at the top of the sequence The oldest rock layers are located at the bottom of the sequence All rock layers in a sequence are identical in age The age of rock layers depends on their color

Correct Answer:

The oldest rock layers are located at the bottom of the sequence

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