Problem: Two college students both had unprotected sex with different partners. Ben got the HIV virus, while Nate was lucky and was not infected with any diseases. Which student didn't have to delay any disease using proper medication?

A: Nate

Problem: Bill was studying the states of matter. First, he selected a matter with low boiling point. He labeled it as matter A. To compare it with a well-known matter he selected water. He labeled it as matter B. He also selected ice, which he labeled as matter C. He is now better prepared to compare their states. Which matter is more needed by living things, matter B or matter C?

A: matter B

Problem: Two nearby villages are experiencing earthquakes. Bow village gets a lot of earthquakes annually, while Arrow village gets only a few. Which village experiences more plates moving?

A: Bow

Problem: Two neighboring villages were living mostly off the land. Boar village was full of fat people, because they would overeat lots of animal products. Leap village was inhabited by vegetarians and vegans.Their food consumption was moderate. Which village had fewer people with increased risk of hypertension?

A:
Leap