Unless a series of sedimentary rock layers has been overturned, which layer is usually the oldest?

Biology

2 answers:

artcher [175]3 years ago

6 0

Answer: The bottom layer.

Explanation: The oldest layers are located at the bottom of the sedimentary rock while the youngest layers are found at the top of the rock. Sedimentary rock most times contains a lot of fossils, they constitute of organisms that have once-lived.

Xelga [282]3 years ago

5 0

the layer on the top. the layer with the most minerals.

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