Answer: The Nile River Valley
Explanation:
One reason that rock layers are not horizontal are because of erosion and it also depends we’re you find the rock layer
I think your answer would be biomass. If the earth uses too much of it, it will take too long to replenish. Hope this helped could I possibly get brainliest?
Iron and Nickel.
Hope this helps please mark this as brainliest answer
