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Aqueducts canals - PowerPoint PPT Presentation

Streams, rivers, ponds, lakes and wetlands.

Surface Water. Streams, rivers, ponds, lakes and wetlands. Surface Water. Productivity in a lake: Oligotrophic- low amounts of nutrients such as phosphorous and nitrogen. Mesotrophic - a moderate level of productivity Eutrophic- high levels of productivity. Oligotrophic and Eutrophic Lakes.

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Aqueducts canals - PowerPoint PPT Presentation

Streams, rivers, ponds, lakes and wetlands.