The graph on the left shows the supply and consumption of forests when the consumption rate and population growth rate are both low. The graph on the
right shows soil erosion under the same conditions.
Resource Consumption
Soil Erosion
10
1691
80
1426
6.0
1161
4.1
895
21
630
365
0
800
1000
0
200
800
1000
400 600
Years
0.1
200 400 600
Years
-Total supply
Total consumption
-Eroded materials
Which conclusion do the graphs support?
O A. When forests are cut down faster, they are replenished faster, and
soil erosion is kept in check.
O B. As consumption of lumber increases, forest resources and soil
erosion also increase.
O C. When forests are cut down faster than they can be replenished,
soil erosion quickly increases.
O D. As consumption of lumber decreases, forest resources and soil
erosion also decrease.