Problem: Two teams of runners took part in a study about exercise. Red team ran 10 km in the heat, while Green team ran the same distance in the morning in cool weather. The Red team experienced more runners with health problems. Which team had more runners with nausea?

A: Red

Problem: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted. Which country had fewer children affected by air pollution?

A: Switzerland

Problem: Two groups of people followed different diets. Group A was comprised of vegans, while group B had a regular diet, with the mention they ate a lots of fatty foods and fast-food. Which group was more exposed to unhealthy weight gain?

A: group B

Problem: Deep lake presents geothermal activity, while Shallow lake has mixing of saline water with fresh water. Deep lake had more instances of divers having problems because of thermoclines. Which lake has colder water the bottom?

A:
Shallow