Problem: Two continents were known for the strange discrepancies in animal populations. Asia was mostly populated by reptiles of all species, while Africa was mostly populated by birds and very few reptiles. Which continent was inhabited by fewer turtles?

A: Africa

Problem: Scientists studied water stratification in two saltwater lakes. they were trying to find out why the fish population decreased in Long lake, and was very healthy and abundant in Shoal lake. They found out the phenomenon occurred more often in Long lake, leading to very many unpleasant chain effects. Which lake had more denser layers of water?

A: Long lake

Problem: Jacob and Thomas were conducting an experiment in a chemistry class. The goal of the experiment was to identify the strength of unknown acids by examining the products formed in a chemical reaction. After they completed the experiment, Jacob concluded that he was given a strong acid, while Thomas concluded that he was given a weak acid. Which person's acid, Jacob's or Thomas's, will have a lower ratio of hydrogen ions to acid?

A: Thomas's

Problem: Vince had a small rural farm. He needed to increase production and efficiency, so he started using herbicides. Danny was one of his farmer friends, he had a small acreage farm and he practiced permaculture, so no pesticides. Which farmer planted fewer crops tolerant to herbicide?

A:
Danny