True or false the largest landforms on the earth are called countries

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.

What was included in most state constitutions that guaranteed protection of individual liberties based upon common law?

Which scholars explained the roles of the public and private sectors by comparing it to maneuvering a boat?