Problem: Bob's parents were in their early 60's. He sent them to the doctor's for a routine check up. Dan, his dad, had very high cholesterol, while Mary, his mom , had normal levels in her blood. Which parent had more plaques that could restrict blood flow?

A: Dan

Problem: Dee and Ann were two cousins. Ann lived in a mountain village at 8000 ft altitude, while Dee lived in a coastal town at sea level. Which cousin experienced cooler weather?

A: Ann

Problem: Two cities located at the sea shore between sand dunes, took 2 different approaches to their economic stability and sources of income for their inhabitants. Dune city was mainly focused on raising animals fishing and tourism, while Gulf city started sand mining operations because of the good prices they received per cubic yard of sand. Which city made more money from fishing?

A: Dune

Problem: Marco is sitting at the bottom of a mountain and painting a picture of it. Lauren, Marco's friend, is sitting about halfway up the mountain and painting a picture of the horizon. The two will compare paintings after they complete their drawings and then will switch places and repeat the task. These two friends do this a couple times a year, and they always enjoy seeing how the other person paints the same object. Who gets less oxygen per breath?

A:
Lauren