How did Rome expand its economy to meet the demands of its growing population

by building aqueducts. by lowering taxes on citizens. by constructing roads.

Explanation:

it wanted to boycott trade with enemy nations.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.