Which of the following headlines best represents a solely humanitarian effort by the united states? a. six american platoons return from iraq b. american relief money sent to victims of haitian earthquake c. nato treaty angers south american leaders d. trade sanctions imposed on iran

Which statement about jews is not correct? question 6 options: a: jews had been disliked and persecuted for many centuries. b: jews lived and worked in businesses throughout germany. c: many germans blamed jews for germany’s economic problems. d: jews began migrating to germany after the end of world war i.

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.

Why are all of the waterways so important in north africa?