Background: Huge amounts of chemicals, such as fertilizers and pesticides, are applied to farm fields (see Figure below ). Some of the chemicals are picked up by rainwater. Runoff then carries the chemicals to nearby rivers or lakes. Dissolved fertilizer causes too much growth of water plants and algae. This can lead to dead zones where nothing can live in lakes and at the mouths of rivers. Some of the chemicals can infiltrate into groundwater. The contaminated water comes up in water wells. If people drink the polluted water, they may get sick.

Situation: 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.

Question: Who will be more likely to cause excess growth of water plants in their respective lakes?
Answer: Jimbo

Situation: 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.

Question: Who will be less likely to cause excess growth of water plants in their respective lakes?
Answer: Jedd

Situation: 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.

Question: Who will be more likely to cause excess growth of algae in their respective lakes?
Answer: Jimbo

Situation: 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.

Question: Who will be less likely to cause excess growth of algae in their respective lakes?
Answer: Jedd

Situation: 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.

Question: Who will be more likely to cause dead zones in their respective lakes?
Answer: Jimbo

Situation: 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.

Question: Who will be less likely to cause dead zones in their respective lakes?
Answer: Jedd

Situation: 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.

Question: Who will be more likely to contaminate their respective water wells?
Answer: Jimbo

Situation: 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.

Question: Who will be less likely to contaminate their respective water wells?
Answer: Jedd

Situation: 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.

Question: Who will be more likely to cause people to get sick?
Answer: Jimbo

Situation: 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.

Question: Who will be less likely to cause people to get sick?
Answer: Jedd

Situation: Rick and Dale are both farmers that have lakes near their farm fields. Rick just began using large amounts of fertilizers because he is trying to improve his harvest significantly this year. Meanwhile, Dale has been cutting back on his fertilizer use because demand for his product has decreased recently.

Question: If both men's farms receive the same amount of rain, lakes near which person's farms are at higher risk for developing dead zones?
Answer: Rick

Situation: Rick and Dale are both farmers that have lakes near their farm fields. Rick just began using large amounts of fertilizers because he is trying to improve his harvest significantly this year. Meanwhile, Dale has been cutting back on his fertilizer use because demand for his product has decreased recently.

Question: If both men's farms receive the same amount of rain, lakes near which person's farms are at lower risk for developing dead zones?
Answer: Dale