Problem: Carrie bought two parcels of farmland. The Northern one had soil with lots of arbuscular mycorrhizal fungi, while the Southern parcel had almost no traces of AM fungi. Given the paragraph above, please answer correctly the following question: Which parcel had a higher soil nutrient content?

A: Southern

Problem: Two different rivers were stocked with adult fish. Red river had a lower fish population because the fish had hardly reproduced naturally. Black river had doubled it's fish population in two years because they reproduced naturally. Given the paragraph above, please answer correctly the following question: Which of the two rivers had more fish release their gametes into the surrounding water ?

A: Black

Problem: Ted had two farmlands. Hill land had good mycorrhizal colonization because ted used cover crops, while Meadow land had fewer AM fungi present in the soil. Given the paragraph above, please answer correctly the following question: Which land didn't have extended time for AM growth into the winter?

A: Meadow

Problem: Daniel visited two countries. Switzerland and India. There was almost no air pollution at all in Switzerland, while the air in India was almost impossible to breathe it was so polluted. Given the paragraph above, please answer correctly the following question: Which country had less environmental damage because of air pollution?

A:
Switzerland