Why would the Confederates want to break the blockade of the South? A. The blockade prevented Confederates from importing cotton.
B. The blockade prevented slaves from escaping by sea.
C. The blockade prevented Confederates from getting supplies.
D. The blockade prevented Confederates from going on vacation

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.