Problem: High lake had a lot of fresh and salt water mixing, therefore presented layers of stratified water.The water was poor in nutrients.Low lake had no such problems and it was a very abundant and prolific fishing spot. Which lake had more phytoplankton?

A: Low lake

Problem: Jimbo and Jedd are both farmers who have lakes and water wells downstream from their farms. Jimbo's products have been in high demand recently, so he has started to use very high amounts of fertilizers on his farms. Jedd has recently decreased the amount of fertilizer he uses because his products aren't wanted as much by the people in his town. Who will be less likely to cause excess growth of water plants in their respective lakes?

A: Jedd

Problem: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources. Which country released more carbon dioxide into the atmosphere ?

A: Burma

Problem: Students learned about protozoa in school this week. Dan and Jim were interested and read more on the subject. Dan read more about predatory and parasitic protozoa, while Jim read more about herbivore and decomposer protozoa. Which student read more about protozoa that graze on algae?

A:
Jim