Final answer:
During World War II, Germany's production possibilities curve was affected by the destruction of its factories and the loss of human resources.
Step-by-step explanation:
The war affected Germany's production possibilities curve by decimating its factories and causing significant human casualties. Germany's productive capacity was severely reduced, leading to a decrease in its ability to produce goods and services. This would result in a shift inward of its production possibilities curve, indicating a decrease in potential output.