The Dictionary of Environmental Science and Engineering, Second Edition
These include all unicellular and multicellular microscopic plants which carry out true photosynthesis. Algae are autotrophic and utilize inorganic compounds for production of protoplasm.
Carbon dioxide is the carbon source and ammonia, nitrite or nitrate are nitrogen sources. Oxygen is produced during growth. Eutrophocation can be characterized as explosive algal growth and chlorination can produce taste and odor problems in water supplies due to material released from dead algal cells, see Autotrophic. see Eutrophication
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