Problem: David was trying to see how steam engines work. For that, he conducted two tests, test A and test B. In test A, he used low temperature. On the other hand, in test B, he used high temperature. David started thinking about how he could use the results of his tests in everyday life. Which test would see higher kinetic energy, test A or test B?

A: test B

Problem: Dahlia has smoked cigarettes every day for many years. Dahlia's daughter, Samantha, has never smoked a cigarette in her life. Besides this difference, Dahlia and Samantha have similar activity levels and eat a similar diet. Who has a lower risk of having a stroke?

A: Samantha

Problem: Two friends decided to lose weight. Tammy started eating healthier, she only used organic products. Fay reduced the number of calories, but still ate conventional food and produce. Which friend drank less milk with no chemical residues?

A: Fay

Problem: Andre is interested in radiation and decides to buy a Geiger counter. He takes his new Geiger counter near the power plant in his town and it starts clicking as he gets closer. As he leaves the area around the power plant and goes home the Geiger counter clicks slower and slower until it almost stops completely. Will approaching a high source of radiation cause a Geiger to click faster or slower?

A:
faster