America using the first Atomic bombs on the Japanese homeland.
The wast ward expantion affected the geography because of the agiculture and the native americans land being taken away and forced to move.
The third or the fourth one. Both are true I think.
Answer:
$32 billion
Explanation:
Rockoff estimates the total cost of World War I to the United States at approximately $32 billion, or 52 percent of gross national product at the time.
