suppose that soil erosion in your area averages . cm per year. the average soil profile is m thick, and percent of that is top soil. estimate how long it will take for the topsoil to erode
Answer
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- They give you the percent of soil that is topsoil, %. Take that amount of your profile of m to find the exact depth of topsoil.
If you have the length, and they give you the rate, one divided by the other will give you the time. If you can’t figure out which one is supposed to be divided by which, well then I can’t just give you the entire problem :).