Two students studied the atmosphere of Earth and other planets from our solar system. Zack learned about Earth's atmosphere, while Ken learned about the atmospheric conditions on planet Venus. Given the paragraph above, please answer correctly the following question: Which student learned about a moderate greenhouse effect?
Ans: Zack

Ben and Sam were two twin brothers. One day Ben was feeling sick so they went to the doctor and they discovered that Ben had hepatitis B. Sam was tested as well, but he was 'healthy as an ox'. Given the paragraph above, please answer correctly the following question: Which brother experienced more vomiting?
Ans: Ben

Tom and Jim go running together once a week. This week Jim skipped his warm up before exercising, because he was a bit late. Tom warmed up properly before running. Given the paragraph above, please answer correctly the following question: Which runner did a slow increase in the intensity of a physical activity?
Ans: Tom

Jill lives out in a peaceful quiet area with hardly any other people around. Next to her home is a calm peaceful river. The river doesn't have an official name that she is aware of, but her family has always called it River Treetop due to the large tree next to it. Also next to her house, there is a roaring river that runs for miles. The river is so loud that it can be hard to hear yourself think sometimes if you are sitting next to it. For this reason, Jill has always referred to the river as River Chaos. Given the paragraph above, please answer correctly the following question: Is the biodiversity in River Chaos higher or lower than in River Treetop?
Ans: higher