What did sumerians purchase from other conturies

The laws and policies of a theocratic government are based on a. rule by a constitutional monarch b. the balance between parliament and an executive leader c. equal representation for each member state d. religious principles and beliefs

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.

Which of the following is an executive check on the powers of the judicial branch of government? a. presides over senate during hearing to impeach the president b. enforces term limits for supreme court justices c. nominates supreme court justices and federal judges d. casts tie-breaking vote if the supreme court cannot reach a verdict