Through what three activities do humans add to the

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Through what three activities do humans add to the total amount of nitrogen fixation?
Biology 203 – Fall 2014Review for Final Exam – Material since Exam III
6 December 2014What is cultural eutrophication and how does it occur?
What are and what causes dead zones in coastal areas?
What changes are associated with nitrogen saturation?
What is leaching and why is nitrate more prone to leaching than ammonium?
How do human activities cause acid precipitation? Explain the consequences of acid precipitation in terrestrial and aquatic systems.
Biology 203 – Fall 2014Review for Final Exam – Material since Exam III
6 December 2014-acidifies water  negative effects on fish populations (fish mortality)How does the phosphorus cycle differ from the nitrogen cycle? How do humans affect the phosphorus cycle and what are the negative consequences?-Main reservoirs: rocks, natural phosphate deposits -Released by weathering, leaching, mining -Usually in short supply - Rapid population growth increased phosphorus-rich sewage deposited into lake  eutrophicationGlobal climate change(1, 5 December; Chapter 30)What are the major fluxes and pools in the global carbon cycle in terrestrial and aquatic systems?Ocean active carbonate poolLandWeathering(Look at diagram not sure about this answer)

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