Problem: Diana is studying astronomy and in her spare time likes to stargaze. She has never been outside of her large city however. One weekend she got to go on a camping trip with her parents. When they arrived at the campsite, which is very far from the lights of the city she noticed the number of stars she could see in the sky greatly increased. Will being in a city increase or decrease the number of visible stars?

A: decrease

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 higher fish disease rate?

A: Jane's

Problem: Two brothers had very different diets. Vick would constantly eat foods high in fat and would frequently overeat. Zack on the other hand, had a higher metabolic rate, a faster metabolism, and he would eat the correct amount of calories. Which brother had a higher chance of increased health problems?

A: Vick

Problem: Two villages experienced flooding this spring. Berg village used many sandbags to protect from the dam overflowing. Creek village didn't use any sandbags, they were caught by surprise. Which village was less affected by the dam overflowing?

A:
Berg