Building the transcontinental railroad was difficult because of the geographic obstacles presented by

Which quantities decrease as the distance between a planet and the sun increases? check all that apply.

Which statement describes the impact of the 21st amendment?

Which statements describe how reformers fought for social change in the progressive era? check all that apply. 1. they founded a state university to promote industrialization. 2. they began a civil rights movement to promote equality between races. 3. they made it legal to manufacture and sell alcohol. 4. they built thousands of new schools and required attendance. 5. they promoted abstinence from alcohol and supported prohibition.