The name for a geographically wide ranging group of peoples and states ruled by a single government is empire. The correct option among all the options that are given in the question is the second option or option "B". An empire can cover a huge amount of area consisting of several states or countries.
The U.S. Bureau of Refugees, Freedman's and Abandoned Lands, popularly known as the Freedmen's Bureau, was established in 1865 by Congress to help former black slaves and poor whites in the South in the aftermath of the U.S. Civil War ,1861-65.
Answer: -they left their farms for California
The Dust Bowl was a phenomenon characterized by severe dust storms which was caused by severe drought. It greatly damaged the ecology and agriculture of the people of America and Canada during the 1930s.
The Dust Bowl, also known as the Dirty Thirties, forced thousands of poverty-stricken families to abandon their farms, and migrate to California.