Which of the following BEST describes a result of desertification for the people living in the Sahel? A.
Increased starvation and poverty.

B.
Increased tourism.

C.
Increased jobs in manufacturing.

D.
Increased support from local African governments.

Describe briefly about great sunil tiwari

Plz plz i need i don’t want to fail plz me don’t let me fail i need on a 4 paragraph about how tighter british control led to a revolution in colonial america

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.