Problem: Ben and Jack both loved microorganisms. Jack decided to study more about lactic fermentation, while Ben decided to study more about protozoa. Which person read less about fungi that carry out lactic acid fermentation?

A: Ben

Problem: David was interested in the coloration of ocean's water. To understand the phenomenon he first observed the color of water at forty feet depth. He noted his observation as point A. Then he observed the color at hundred feet depth. He noted his observation as point B. Then he observed the color at four thousand feet depth. He noted that observation as point C. He now have some ideas how the color of water changes according to its depth. Where the color would be darker, point A or point B?

A: point B

Problem: Two school districts adopted two different strategies in educating their students. Park's district made the students work in groups at all times, the students from Lake's district were instructed to work by themselves and in isolation. Which district's students learned fewer useful life skills that well help prepare them for the future?

A: Lake's

Problem: John is trying to buy a house. Today, he saw two houses, house A and house B. House A was build in the 1920s. It has lead plumbing pipes and lead based paint. House B was build recently. It does not have lead plumbing pipes or lead based paint. Which house would be more dangerous for children, house A or house B?

A:
house A