What was a push factor for the great migration

The jobs of an executive director include heading operations, managing the budget, and securing more a) funding b) frontline workers c) resources d) programs

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

The tongue river railroad company (trrc) proposed the construction of a 130-mile railroad line in southeastern montana. trrc received the approval of the interstate commerce commission. however, the northern plains resource council argued that the approval was given without a full analysis of the impact of the line on aquatic life, wildlife, and sensitive plants. what are northern plains resource council’s options? there are no options because trrc is a private entity. there are no options because a government agency is not taking any action, trrc is. one option is to challenge the adequacy of the eis for the line. the best option is an mact challenge.