[Q]: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy. Which city had more children affected by the pollution?
****
[A]: Prague

[Q]: Company X stopped taking on more debt, and decided to file for bankruptcy, while company Y, kept benefiting from the tax benefits of debt, having a lower debt level. Which company discharged less debt, company X or company Y?
****
[A]: company Y

[Q]: The Jones family and the Bell family both entered a medical study for diabetes.The members of Jones family had mostly type 1 diabetes, while Bell family members had type 2 diabetes because they ate junk-food. Which family had more members that were overweight?
****
[A]: Bell

[Q]: John is learning more about different cultures and people around the world. He noticed that people have different skin colors. To learn more about the science behind skin colors he categorized the skin colors into two broad groups, case D and case L. Case D is represented by darker skin and case L is represented by lighter skin. People in which case would be less exposed to UV light, case D or case L?
****
[A]:
case L