Explanation:
Erosion erodes rocks and such to form sand. Deposition moves the sand to another place ro form the dunes.
A layer of rock might have eroded is an unconformity in a sequence of rock layers that reveal about geologic history. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that will come to your help.
Answer:
A political map of the United States.
Explanation:
Hope this helps! :)
