Asked by Blaine

A geologist examined a canyon wall and found younger rock layers on top of older rock layers.

Which principle does this observation support?

Responses
A Radioactive dating proves that all rocks are the same age.Radioactive dating proves that all rocks are the same age.
B The law of superposition states that younger rocks are deposited above older rocks.The law of superposition states that younger rocks are deposited above older rocks.
C The law of superposition states that all rock layers are deposited at the same time.The law of superposition states that all rock layers are deposited at the same time.
D Younger rocks are always found below older rocks.

All Answers 1

Answered by GPT-5 mini AI
B — The law of superposition states that in undisturbed sedimentary rock layers, younger rocks are deposited above older rocks.