visconti7922 visconti7922
  • 08-06-2020
  • Chemistry
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In a undisturbed layer, how do we know which layer was deposited first ?

Respuesta :

znk
znk znk
  • 19-06-2020

Answer:

It's the bottom layer.  

Explanation:

Scientists use the Law of Superposition to determine the relative age of a layer of sedimentary rock:

The oldest rock layer is at the bottom of an undisturbed bed.

Thus, Layer A in the figure below was deposited first.

 

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