Adulteration of food and pollution "Adulteration" is a legal term meaning that a food product fails to meet federal or state standards. Food is the basic necessity of life. One works hard and earns to satisfy our hunger and relax (enjoy) later. But at the end of the day‚ many of us are not sure of what we eat. We may be eating a dangerous dye‚ sawdust‚ soapstone‚ industrial starch‚ and aluminum foil and so on! Contaminated foods and drinks are common sources of infection. Often‚ we invite diseases
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Nature nurtures mankind unselfishly with its rich resources. Yet‚ man is so carried away in his transformation of nature that he is unaware that it also has limitations and needs constant care. Now worn by the excessive demands of mankind‚ nature is unable to maintain the ecological balance needed. Humanity is faced with the problem of how to stop‚ or at least to moderate‚ the destruction of Mather Nature. Man in the realm of nature By Alexander Spirkin Human beings live in the realm of nature
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Man vs. Nature The natural world is superior to all of humanity. Without reason‚ land controls us and influences our identities. Through mankind’s power we try to suppress the natural world but never truly succeed. “Progressive Insanities of a Pioneer” by Margaret Attwood‚ “The Bull Moose” by Alden Nowlan and “Not Just a Platform for my Dance” are comparable poems in a way that all three deal with a theme of the natural world and the power it holds against mankind. “Progressive Insanities of
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Ocean Pollution “Over 80% of marine pollution comes from land-based activities” (WWF‚ May 4‚ 2006‚ p.1). The rest comes from ocean-based activities. Different types of pollution enter the ocean each year. The major pollutants are oil‚ toxic materials‚ and debris. These materials not only pollute the ocean‚ but they also affect the marine life. Before the 1970s there were no laws to prevent and stop people from dumping pollutants into the ocean. Since the early 1970s many laws and regulations
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STUDY GUIDE: OBJECTIVES Chapters 17 and 18: Air Pollution and Global Climate Change You will be quizzed on information provided on this handout. THIS IS NOT A HOMEWORK ASSIGNMENT!! VOCABULARY: see next page A Word Wall must be made from one of these words (vocabulary list) for this Chapter’s Quiz. Due on the date of the quiz. OBJECTIVES: 1. Be familiar with material from all previous chapters. 2. How are primary and secondary pollutants different? Give an example of each. 3.
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Topic: The causes and effects of air pollution Air pollution is a serious problem facing by many countries now. Air pollution is the presence of abnormal concentration and abnormal constituents in air. The quality of the air has been deteriorating in urban areas‚ we hard to get a healthy life with fresh air. The air is being polluted by smoke‚ harmful gasses‚ dust articles and others. Therefore‚ there are three main factors that caused air pollution which are exhaust gases from cars‚ uncontrolled
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THERMAL POLLUTION It is one of the pollution that effects on living things and the environment badly. The definition of thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature‚ the change in temperature decreases oxygen supply‚ and affects ecosystem composition
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unfrozen fresh water is found mainly as groundwater‚ with only a small fraction present above ground or in the air. However‚ water is now being heavily polluted by nobody else but human. So what are the causes and effects of water pollution? The causes of water pollution vary. However‚ we can sum them up in to two groups: One is direct causes and the other is indirect causes. The direct causes are what are dumped directly into water bodies‚ such as raw sewage‚ household waste or chemicals. In developing
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the study of air pollution are introduced. lsointroduced are a brief history of air pollution‚ its regulation‚ and trends of its ambient concentrations and emissions. Keywords: Anthropogenic‚ biogenic‚ geogenic emissions biogenic‚; primary and secondary pollutants; criteria‚ hazardous‚ radioactive‚ indoor pollutants; sulfur smog‚ photochemical smog; UN-ECE‚ US-EPA‚ Clean Air Act. Air pollution spreads easily as it travels into the atmosphere. People get exposed to air pollution not just outdoors
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Air Pollution Alicia Goodman Environmental Science – EVS1001 June 18‚ 2011 Instructor: Angie Edwards AIR POLLUTION Air pollution is the biggest problem we as government face today. The problem arose during the industrial revolution and has just gotten worse since then. However‚ the industrial revolution brought many great changes to the world; better transportation‚ cheaper merchandise‚ and has made our life better. In the beginning of the industrial revolution‚ the problem of pollution
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