Two islands were situated in different oceans. Hill island used fossil fuels and released a lot of carbon dioxide into the atmosphere, while Coral island was very protective towards the air and the ocean. Which island didn't cause marine organisms to reproduce less?
Ans: Coral

Two families thought differently about vaccinations. Dean family vaccinated their children while Moore family didn't. Which family didn't have pathogens injected under the skin?
Ans: Moore

Two brothers learned about animal reproduction, Tim learned about fish reproduction, while Bill learned about mammal reproduction. They both received grade A. Which brother studied less about eggs developing outside of the mother's body?
Ans: Bill

The island of Utopia is a popular tourist destination with its great sandy beaches. Two of the most popular beaches are beach A and beach B. Both beaches also have large wildlife sanctuaries where rare dolphins can be seen. There are some fisheries in both beaches too. This year the government of Utopia is looking for more sources to increase their revenue. They decided to allow sand mining in beach A next year, and earn some extra revenue. Will there be increased or decreased level of tourists in Beach B next year?
Ans: increased