Question

I NEED HELP (AGAIN!) What does an unconformity in a sequence of rock layers reveal about geologic history?


The layers must cover hundreds of square miles.


A layer of rock might have eroded.


A rock layer must have turned upside down.


The layers must have been deposited very quickly.

Answer 1

Answer:

b. a layer of rock might have eroded...... an unconformity is basically a space in the geologic record.  you cant really tell what happened there, only that a layer is no longer there for one reason or another, usually erosion.

Explanation:

Answer 2

Answer:

(b) The rock layer might have eroded.

Explanation:

As a rock ages, it may become eroded. This can be seen in the damaged layer.

Hope this helps!