EESA01H3 Chapter 11: Chapter 11
11 Apr 2011
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Document Summary
Chapter 11: f reshwater systems and water resources. A smaller r iver flowing into a larger one is a t ributary the area of land drained by a river drainage basin or watershed. Wetlands include marshes (shallow water allows plants to grow above water"s surface), swamps (consist of shallow water but they occur in forested areas) and bogs (ponds thoroughly covered with thick floating mats of vegetation. Oligotrophic (low-nutrient, high oxygen) eutrophic (opposite therefore it is high nut rient and low oxygen) Dikes long raised mounds of earth protect against flooding. Water mining taking water faster than it can be replenished. Point sources (discrete locations, such as a factory or sewer pipe) vs. non-point- sources (multiple cumulative inputs over larger areas such as farms, city streets, etc) water contains naturally high concentrations of calcium and magnesium ions, which prevents soap from lathering and leaves chalky deposits behind when heated or boiled.
