What were the geographical features that affected traveling west

Which research model refers to the study of an individual, group, or community over a predetermined period? a. cross-sectional model b. sectional model c. cross-sequential model d. longitudinal model

How we perceive, use, study, structure, interpret, and react to messages of time is referred to as: ?

Discuss the role of policy analysis in policy modification. include a description of a federal agency that supports policymaking through policy analysis.