Problem: Doctors studied two groups of patients. Group W which had people with sickle cell disease, and group A which had normal people in it. Given the paragraph above, please answer correctly the following question: Which group had more individuals with aggregating hemoglobin?

A: Group W

Problem: 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?

A: higher

Problem: Two farms used AM fungi for the plants. Brown farm also decided to grow cover crops on those parcels of land to help mycorrhizal growth. Orange farm didn't grow cover crops. Given the paragraph above, please answer correctly the following question: Which farm promoted hyphal growth less?

A: Orange

Problem: A group of researches studied the green house gas emissions and their effects on Earth and people during the eighties compared to the twenties. Given the paragraph above, please answer correctly the following question: During which decade did Earth experience a less prevalent heating effect because of green house gas emissions?

A:
twenties