How did aqueducts contribute to the growth of the Roman Empire? They enabled trade routes to reach faraway lands.
They were used to protect against natural disasters.
They were used to help the military conquer new lands.
They enabled water to reach the cities for proper sanitation.

Which statement best represents an economic weakness of the national government under the articles of confederation? a. the national government was unable to collect taxes. b. national and state taxes combined were too high for most services to pay. c. congress set different tax rates for each state, leading to conflict. d. state refused to collect taxes on behalf of the national government