Activity 4.1.3: Testing the Waters | Introduction Many chemicals dissolve in water because it is an excellent solvent. Once dissolved‚ these chemicals are not visible to the human eye. Therefore‚ many chemicals might be present in water without providing any visible evidence. Additionally‚ some substances can be present in very low concentrations and still cause health concerns. For these reasons‚ drinking water needs to be tested for contamination. A variety of chemical tests are used to detect
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Keep our environment pollution free Good morning to my principal‚ Mrs. A.K. Chan‚ all the teachers and my fellow friends. Thank you Mrs A.K. Chan for giving me a chance to present me for giving a speech about keeping our environment pollution free to everyone in this hall. I am here to talk about keeping our environment clean‚ as you can see all of us are suppose to take care of this planet to make it a better place‚ but why aren’t we doing it so? We are not doing much. We must make a change
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Ladies and Gentleman of the jury‚ W.R. Grace and Beatrice foods have polluted the aquifer located under East Woburn. There is no question of this‚ as testimony from workers such as Al Love show that they have spilled‚ poured and dumped TCE‚ or Trichloroethylene. Mr. Reilly testified that he should have known what was happening on the 15 acres of property he leased out to the Whitney barrel company. By dumping TCE and other chemicals onto the ground‚ these companies introduced these harmful substances
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Name: ______________________________________ Date: ________________________ Student Exploration: Water Pollution Vocabulary: bacterial pollution‚ nutrient pollution‚ sediment pollution‚ toxic pollution‚ water pollution Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Water pollution is the addition of harmful substances to water. Some of these substances are found at home. What household chemicals might be harmful if not disposed of properly? _________________________________________________________________________
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Biological Polluters of South Florida. Biological polluters. When these words come to mind we think of negative factors damaging our environment‚ but what exactly are biological polluters. Biological pollution is the terms used for the pollution to the environment one organism produces when it is transported to a nonnative area. Biopollution is very common in South Florida. The diversity of cultures has cause a high peak in the amount of invasive species found in South Florida. The native
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pollutants that have entered the soil. Trees can either store harmful pollutants or actually change the pollutant into less harmful forms. Trees filter sewage and farm chemicals‚ reduce the effects of animal wastes‚ clean roadside spills and clean water runoff into streams. 3. Trees Control Noise Pollution Trees muffle urban noise almost as effectively as stone walls. Trees‚ planted at strategic points in a neighborhood or around your house‚ can abate major noises from
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conditioning bill in half. 2. Trees save tax payers. Trees in a city slow storm water runoff and reduce the need for storm sewers. Tree shade also helps cool municipal buildings‚ lowering electricity bills. 3. Trees cool our cities. Urban "heat islands" are directly related to massive tree-cutting for development. 4. Trees clean our water and air. From low level ozone in our cities to pesticide and fertilizer runoff from our farms‚ trees absorb harmful pollutants. 5. Trees help community
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areas. (According to the Axia College Week Six reading Freshwater Resources and Water Pollution 2007)‚ a description of water pollution.) A major source of non-point water pollution in the urban environment is storm water runoff‚ in the past it was acceptable for this runoff to be channeled into the natural systems of washes‚ creeks‚ and rivers. However‚ this is no longer true‚ the Clean Water Act of 1972 and the Water Quality Act of 1987 set standards for water discharged to local surface water
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Trees filter sewage and farm chemicals‚ reduce the effects of animal wastes‚ clean roadside spills and clean water runoff into streams. 3. Trees Control Noise Pollution Trees muffle urban noise almost as effectively as stone walls. Trees‚ planted at strategic points in a neighborhood or around your house‚ can abate major noises from freeways and airports. 4. Trees Slow Storm Water Runoff Flash flooding can be dramatically reduced by a forest or by planting trees. One Colorado blue spruce‚ either
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The Consequences of Water Pollution Annually‚ 90 million people add to the current population of 6.5 billion. At this rate the global population will reach approximately 8.5 billion by 2025 (http://dieoff.org/page120.htm). As the global population grows exponentially‚ so does the demand for natural resources. Of all these natural resources‚ water‚ is the most vital for survival and expansion. Human’s dependency on water will never go away‚ making it a key part to any civilizations future. It
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