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Phosphorus Cycle

Phosphorus Cycle. Natalie Bui Kayla Marsh Nizar Ajhar. Properties of Phosphorus. Phosphorus is an element, represented on the periodic table as. Properties of Phosphorus. White phosphorus is spontaneously flammable (this type is industrially manufactured)

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Phosphorus Cycle

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  1. Phosphorus Cycle Natalie Bui Kayla Marsh NizarAjhar

  2. Properties of Phosphorus • Phosphorus is an element, represented on the periodic table as

  3. Properties of Phosphorus • White phosphorus is spontaneously flammable (this type is industrially manufactured) • Black phosphorus can conduct electricity • In nature, phosphorus has never been found in its pure form; it exists as phosphates (phosphorus + oxygen)

  4. Phosphorus & the Environment • Food that contains a large amount of phosphorus: fish (including salmon and tuna), turkey, eggs and cheese • Phosphorus can be used as fertilizer for agriculture as well as pesticide (which can lead to problems) • Can also be used as incendiary bombs, pyrotechnics, toothpaste

  5. Phosphorus Cycle

  6. Reactions in the Phosphorus Cycle • This reaction shows how a phosphate molecule becomes fixed into the environment • The calcium can be replaced by iron, magnesium and aluminum • This reaction depends of pH

  7. Reservoirs of Phosphorus INORGANIC ORGANIC Animals Plants Most notably in DNA and RNA • Water • Soil • Sediments

  8. Pathway Movement

  9. HUMAN INFLUENCES ON THE CYCLE • Commercial synthetic fertilizers • Calcium phosphate is mined • Use of sulfuric acid to convert into fertilizer or “super phosphate” • Plants don’t absorb all of it, becomes run-off into lakes and rivers. • Re-absorbed by aquatic plants which causes algal bloom • Sewage treatment plants

  10. YouTube Video Summary

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