According to Hobbes, why do people form social contracts to "live in Commonwealths”?

Aresearcher is making an argument that the increase in nuclear weapons led to distrust between americans and soviet citizens

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling

Our environments can change human behavior. describe some ways that environment changes the choices we make. what does the connection between humans and environment have to do with the study of geography?