Historical note: Because of its military importance, the U.S. government exercised monopoly control over which one of the following goods before World War II?
A) iron
B) steel
C) helium
D) hydrogen
E) coal

Question

Quizplus · Accepted Answer

The U.S. government exercised monopoly control over helium because of its military importance, particularly for airships and later for other military applications, before World War II.

Historical Note: Because of Its Military Importance, the U