nmarquez6464 nmarquez6464
  • 27-02-2024
  • Geography
contestada

Soil erosion in an area is 3.0 cm per year. The soil profile is 2.4 m thick and 25 percent of that is topsoil. How long will it take for the topsoil to erode away?
a) 80 years
b) 60 years
c) 40 years
d) 20 years

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