contestada

Unconformities occur when _____.
younger rock is placed on top of older rock
igneous structures cut across
eroded surfaces are covered by younger rock
an entire sedimentary bed is deposited at the same time

Respuesta :

The answer is the third one
JonHenderson55
The answer is:  [C]:  "eroded surfaces are covered by younger rock" .
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         "Unconformities occur when  eroded surfaces are covered by younger rock ."
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