How did strategy and technology combine to create the culture of the knight

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

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.

Which three sentences in the story indicate that that the passage is an ex nihilo type of creation story?