Based on the grey color of the deposit, what can be inferred about oxygen levels

Question

Based on the grey color of the deposit, what can be inferred about oxygen levels of where the sediment was deposited?

Question options:

A)

This sediment was deposited on land

B)

This sediment was deposited in shallow moving water

C)

This sediment was deposited in an environment with low to no oxygen levels

D)

We cannot tell the oxygen levels in an environment using color.

A)

This sediment was deposited on land

B)

This sediment was deposited in shallow moving water

C)

This sediment was deposited in an environment with low to no oxygen levels

D)

We cannot tell the oxygen levels in an environment using color.

Explanation / Answer

c) This sediment was deposited in an environment with low to no oxygen levels.

Black or grey color of the deposit indicates that the sediment was deposited in an environment with low to no oxygen levels.This color is due to the presence of decaying organic materials in low to no oxygen levels.

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