What is one word that summarizes russia's geography

Chris would like to conduct a study on the effectiveness of a new substance-abuse treatment program. he has a sample of participants go through the program and he uses as a comparison group people who did not volunteer for the program but were eligible. chris has used a(n) design for his study.

Which political reform gave people the power to put a proposed law on the ballot? referendum initiative direct primary recall

How did the end of the mexican american war result in growing sectionalism in the united states?