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Catracho Catracho
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Posts: 529
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3 years ago
Part A
Depletion of which of the following is causing the dead zone in the Gulf of Mexico?
oxygen
phosphorus
carbon dioxide
nitrogen

Part B
You are an Iowa farmer interested in decreasing the pollutants that are causing the dead zone in the Gulf of Mexico. Which of the following would likely be the best for you to do?
Reduce your fertilizer use.
Reduce your insecticide use.
Increase tillage.
Reduce your herbicide use.


Part C
You research organisms in woodchip bioreactors that decrease dead zone pollutants. Which of the following do you study?
algae
insects
redworms
bacteria

Part D
Which of the following appears to be the best way to reduce dead zone pollutants?

Encouraging farmers to plant more crops.
Using only phosphorus filters.
Using only bioreactors.
Using bioreactors and phosphorus filters.


Part E
Decreasing soil erosion would have which of the following effects?
It would decrease the amount of phosphorus getting into waterways.
It would increase the amount of phosphorus getting into waterways.
It would have no effect on the amount of phosphorus getting into waterways.
It would have volatile effects on the amount of phosphorus getting into waterways.
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Answer accepted by topic starter
bio_manbio_man
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Posts: 30180
3 years ago
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Part A Depletion of which of the following is causing the dead zone in the Gulf of Mexico? oxygen phosphorus carbon dioxide nitrogen

Oxygen

In the process of answering the rest...
Post Merge: 3 years ago

Part B You are an Iowa farmer interested in decreasing the pollutants that are causing the dead zone in the Gulf of Mexico. Which of the following would likely be the best for you to do? Reduce your fertilizer use. Reduce your insecticide use. Increase tillage. Reduce your herbicide use.

Reduce the fertilizer
Post Merge: 3 years ago

Part C You research organisms in woodchip bioreactors that decrease dead zone pollutants. Which of the following do you study? algae insects redworms bacteria

I think it's algae because fertilizers cause algael blooms, and that's what reduces oxygen in a seabed following eutrophication
Post Merge: 3 years ago

Part D Which of the following appears to be the best way to reduce dead zone pollutants? Encouraging farmers to plant more crops. Using only phosphorus filters. Using only bioreactors. Using bioreactors and phosphorus filters.

I'm unfamiliar with this, but I found a resource suggesting it's the last one

https://www.sciencedirect.com/science/article/pii/S0043135417303834
Post Merge: 3 years ago

Part E Decreasing soil erosion would have which of the following effects? It would decrease the amount of phosphorus getting into waterways. It would increase the amount of phosphorus getting into waterways. It would have no effect on the amount of phosphorus getting into waterways. It would have volatile effects on the amount of phosphorus getting into waterways.

First option
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