The geography of the north china plain had which effect on early chinese
civilizations?

a. it made china the center of world trade.
b. it protected china from foreign attacks.
c. it many religions spread throughout china.
d. it prevented china from growing its own food.

Why was the sixteenth amendment important to woodrow wilson’s efforts to regulate the economy? a) the sixteenth amendment lowered interest rates charged by banks. b) the sixteenth amendment allowed congress to levy an income tax c) the sixteenth amendment lowered tariffs on imported goods d) the sixteenth amendment allowed congress to break up monopolies