Why did so many race riots / race massacres occur during and immediately after WWI?

Which of the following shows the correct order of events? catt’s “winning plan,” suffrage in some western states, the nineteenth amendment suffrage in some western states, the nineteenth amendment, catt’s “winning plan” suffrage in some western states, catt’s “winning plan,” the nineteenth amendment catt’s “winning plan,” the nineteenth amendment, suffrage in some western states

Which lake receives up to 9 million visitors each year, covers more than 90,000 acres, and was created by denison dam? a. the grand lake o' the cherokees b. lake thunderbird c. lake eufaula d. lake texoma

How did president wilson compensate for the reduced government income resulting from his lowering of tariffs? a. he taxed businesses b. he charged federal interest on loans c. he cut government expenses d. he created an income tax