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The Phosphorus Cycle

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by

Hannah Uher

on 2 April 2013

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Transcript of The Phosphorus Cycle

By: Hannah Uher
water flow carries phosphorus into rivers & streams, then into a major body of water, like a lake phosphates are absorbed by plants at the edge of the water

the phosphates are concentrated in plant tissues & used in organic compounds Animals eat the plants plants and animals die, returning phosphates to the water plant & animal waste return phosphates to the water some phosphates enter the soil & are absorbed by the roots of plants The Phosphorus Cycle phosphate is formed when phosphorus combines with oxygen in water phosphates are carried by rivers & streams as runoff into the ocean phosphates are concentrated in marine sediment primary producers, like plants, in the ocean use phosphates in organic compounds, the only way for phosphorus to leave the ocean sediment is through geological upthrust, when sediment/rocks come out of the ocean fish and other animals eat the primary producers plants are the primary producers in the phosphorus cycle animals die, returning phosphates to the water/sediment animals waste returns phosphates to the water/sediment phosphorus is mostly contained in rocks & soil phosphorus goes through a sedimentary / biogeochemical cycle phosphorus cycle moves slowly & does not extend to atmosphere algal blooms, an abundance of algae in an area of water, can be caused by an excess of phosphates that act as a catalyst for algal growth the algae live for a short amount of time, resulting in an accumulation of dead organic matter that begins to decay the process of decay uses oxygen, creating hypoxic conditions without enough dissolved oxygen in water, plants & animals will die off in large quantities
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