What was not a reason for the united states to declare war on germany in 1917?

What was the main objective of the national origins act of 1924

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

Atsar was a russian leader in early 1900 who was similar to a?