Problem: Mary's lake was full of fish, the lake's environment was very healthy. Mary stopped fishing on this lake five years ago and maintained it properly. Jane's lake had high fish mortality both from fishing and pollution, and disease from overstocking. Which lake had a lower water pollution?

A: Mary's

Problem: At a doctor's office, two women are having their annual physical done. Jessie goes in first and is told that that she should go see a dermatologist about the skin issues she is having. The doctor then sees Martha who is having a pain in her right arm and who also has hypertension. The doctor talks to Martha about her issues and then heads home for the day. Whose diet should consist of more dark chocolate?

A: Martha

Problem: Two twin sisters, Bianca and Rosa, were exposed to high levels of air pollution. While Bianca was exposed mostly to indoor pollution, Rosa was heavily exposed to outdoor pollution. Which sister was less exposed to air pollution from school?

A: Rosa

Problem: Ben and Jerry were two friends with very different dietary habits. Jerry ate healthy food, and was always on top of his caloric consumption, while Ben overate because he loved fatty foods such as butter, bacon et al. Which friend had a lower chance of experiencing unhealthy weight gain?

A:
Jerry