Name _____________________________ Lab: Water Quality Introduction: Today’s lab involves taking a look at the large rivers in our systems and the effects that humans have on those systems. In Lansing we have the Grand River just one block from the downtown LCC campus and many urban areas are located on the shores of large water bodies. After an introductory video we are going to look at some of the parameters that biologists use to evaluate the condition of aquatic systems. Although biologists are interested in life they realize that life exists where the physical factors i.e. chemical composition is favorable to the specific organism. Therefore biologists usually begin their evaluation of aquatic systems with measurements of the chemicals present in the ecosystem. Part 1: Watch the video entitled “Explore More: Water Quality” located at the site below and answer the questions. http://www.youtube.com/watch?v=RMyCcWECbNE 1. List and describe the 4 pollutant decomposition of these weeds and algae when they die depletes the oxygen that is needed by fish and other aquatic life. Currently in Michigan how much phosphorous is allowed in chemical fertilizers? In Michigan phosphorous fertilizers are prohibited from being applied to lawns except for the following cases: • A necessity shown by the test of the soil and plant tissue needs more phosphorous. •For an establishment of a turf that is new using seed or sod. •Applied with fertilizers that contain biosolids manure or a manipulated manure (Composted manure). This application is limited to 0.25 pounds of phosphorous per 1 000 square feet. What is Milorganite made from? Would you use it? Explain. Milorganite is made by recycling of microbes. I would use it. It is a fertilizer that is natural and does not use chemical toxins. It is applicable for environmental safety as well as human safety. [...]
I just need an answer for the questions, no copy & past please!