Which country was the source of most of the illegal drugs, especially cocaine, that were imported into the US during the 1970s and 1980s? A.
Mexico
B.
Colombia
C.
Guatemala
D.
Brazil

Please select the best answer from the choices provided

Dr. redbull conducts a study to determine whether her new energy drink children perform better on spelling tests. she randomly assigns children to one of two groups: group 1 receives her energy drink and group 2 receives water. she then gives both groups a spelling test and compares the results. which of the following is true about this study? a. group 1 is the dependent variable and group 2 is the independent variable. b. this is a correlational study. c. group 2 is the experimental group. d. the independent variable is the type of drink the children receive.

In the modern world, many countries with kings or queens have evolved into constitutional democracies. in these countries, monarchs are mostly

Statement best describes the main reason behind the establishment of government in the early river valley civilization‘s