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Alamojay Alamojay
wrote...
Posts: 1898
9 years ago
The continuing addition of large amounts of nitrogen and phosphorus to aquatic ecosystems may exceed planetary boundaries and create a "tipping point" in which
A) nitrogen and phosphorus are depleted from soils.
B) high nitrogen and phosphorus levels cause ecosystems to change in ways difficult to reverse and that are damaging to human food production.
C) these ecosystems produce far more human food than ever before.
D) water is lost from these systems and they become deserts.
Textbook 
Environmental Science: Toward A Sustainable Future

Environmental Science: Toward A Sustainable Future


Edition: 12th
Authors:
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Super Cuban Dude
Smiling Face with Open Mouth
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JesuisMelJesuisMel
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Posts: 2453
9 years ago
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Alamojay Author
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9 years ago
Thanks
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Yesterday
Thanks
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2 hours ago
You make an excellent tutor!
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