Help…..Which of the following events sparked the end of America’s isolationist policy?

Idont want to fail what happened in iraq most immediately after saddam hussein was removed from power? a. the new government used chemical weapons against civilians. b. isis declared the formation of the islamic state. c. *** iraqi refugees fled to neighboring countries. d. civil war broke out between different ethnic and religious groups.

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

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