Question

A student claims that if a giant

core sample could be taken by drilling
down through Earth's crust, the resulting
column of rock layers would show clear
divisions of all the periods in the same
order as the geologic time scale. Do you
agree with the claim? Explain.

Answer 1

Yes, I do agree with the claim made by the student that if a giant core sample could be taken by drilling down through Earth's crust, the resulting column of rock layers would show clear divisions of all the periods in the same order as the geologic time scale.

Explanation:

• The layering up of various earthly materials has taken place on Earth from several hundred million years.
• Every time after a new layer got deposited over the other, the layer below got isolated and remain unchanged since then.
• Hence, if a cross-section block is drilled out of the Earth now, it would exhibit clear divisions of all the periods in the same order as the geologic time scale.