Where are chlorofluorocarbons found? a. coolants b. the atmosphere c. solvents d. all of the above

Segregation or discriminatory practices that occur even when there is no explicit legal enforcement

What’s the reason for not digging up aztec ruins in modern mexico city

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.