Some agricultural sub-Saharan nations of Africa have overfarmed and overgrazed their land to the extent that significant portions of it have turned into desert. This suggests that
A) the production possibilities curves of such nations are more bowed out from the origin.
B) the production possibilities curves of such nations have shifted inward.
C) the production possibilities curves of such nations have shifted outward.
D) these nations are operating at some point outside of their production possibilities curves.

Question

Quizplus · Accepted Answer

Overfarming and overgrazing lead to soil erosion and depletion of nutrients, which can cause the agricultural production capacity of a nation to decrease. This inward shift in their production possibilities curve is evident when they can no longer produce as much output as before. The desertification of land means that certain natural resources that were initially available are now absent. This limits the productive capacity of the nation, causing a shift inward in their production possibilities curve.

Some Agricultural Sub-Saharan Nations of Africa Have Overfarmed and Overgrazed