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Free research papers and essays on topics related to: phosphorous

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  • Automobile Emissions - 1,846 words
    ... uction in carbon monoxide, hydrocarbon, and nitrogen oxide emissions. Figure 3.1 illustrates the percentage of these pollutant resulting from automobile emissions. POLLUTANT TOTAL AMOUNT VEHICLE EMISSIONS Amount Percentage NITROGEN OXIDES 36 019 17 012 47 HYDROCARBONS 33 869 13 239 39 CARBON MONOXIDE 119 148 78 227 66 Table 3-1 Pollution Accounted by Automobile Emissions in 1989 (1000 tons) The 1970 amendment requirements were so stringent for that period that they could not be met with available engine technology. New technology has since been developed and the requirements have been met. However, more rigid standards are continuously being proposed to improve emissions. While significa ...
    Related: automobile, automobile industry, emission control, internal combustion engine, automotive industry
  • Bioethics - 2,379 words
    ... bes, where it travels to the uterus (Leone, Reproductive 13). Another method, "gamete intrafallopian transfer" (GIFT), is done by injecting sperm and an unfertilized egg into a fallopian tube, at which time conception and implantation will occur (Leone, Reproductive 13). Lastly is the "zona cracking" method. This technique involves piercing the outer layer of the egg and placing a single sperm cell within the egg, then embedding the fertilized egg into the woman (Leone, Reproductive 13). There is yet another well-known fashion for infertile couples to conceive a child - surrogate motherhood. In this process, the fertilized egg of one woman is allowed to develop in the womb of another. Su ...
    Related: national bioethics advisory, handicapped children, bill clinton, human life, agony
  • Bioethics - 2,379 words
    ... bes, where it travels to the uterus (Leone, Reproductive 13). Another method, "gamete intrafallopian transfer" (GIFT), is done by injecting sperm and an unfertilized egg into a fallopian tube, at which time conception and implantation will occur (Leone, Reproductive 13). Lastly is the "zona cracking" method. This technique involves piercing the outer layer of the egg and placing a single sperm cell within the egg, then embedding the fertilized egg into the woman (Leone, Reproductive 13). There is yet another well-known fashion for infertile couples to conceive a child - surrogate motherhood. In this process, the fertilized egg of one woman is allowed to develop in the womb of another. Su ...
    Related: national bioethics advisory, human race, down syndrome, kurt vonnegut, barrier
  • Chp 2 Atoms, Molecules And Bonds - 1,100 words
    CHP 2 ATOMS, MOLECULES AND BONDS Define element, atom, compound, molecule, and trace element. ELEMENT: a substance that cannot be broken down to other substances by chemical reactions. COMPOUND: a substance consisting of two or more elements combined in a fixed ratio. MOLECULE: two or more atoms held together by covalent bonds TRACE ELEMENTS: those required by an organism in only minute quantities. Give the mass, charge, and location of each sub-atomic particle. NEUTRON: Mass= 1 Dalton or 1.009 grams or 1.7 x 10-24 Charge= neutral Location=Center of the atom PROTON: Mass= 1 Dalton or 1.007 grams or 1.7 x 10-24 Charge= positive Location= Center of the atom ELECTRON: Mass= we ignore the mass o ...
    Related: energy level, atomic number, diagnosing, chemistry
  • Cows - 682 words
    Cows Our land our bodies and our cows are all effected by the meet industry. Our land and water is getting polluted from animal waste. Our bodies are getting sick from germs in meat, and the cows are being tortured and are suffering. Waste from livestock in the United States amounts to130 times the waste produced by people. In Central California 1,600 dairies produced more waste than a city of 21 million people thats 5 tons for every person on this earth, and their is not enough surrounding land to absorb it all. Every time it rains phosphorous and nitrogen seep into our water ways causing algae and fungus to spread. One type of algae has ability to ambush its pray by stunning it with a diso ...
    Related: cows, care cost, health care, memory loss, chain
  • Environmental Economics - 1,262 words
    Environmental Economics Environmental Economic Impact of Pollution in the Chesapeake Bay The Chesapeake Bay is the nations largest estuary with six major tributaries, the James, the Potomac, the Susquehanna, the Patuxent, the York, and the Rappahannock Rivers, feeding into the bay from various locations in Maryland, Virginia, Pennsylvania, and the District of Columbia (Chemical Contaminants in the Chesapeake Bay Workshop Discussion 1). These areas depend on the Bay as both an environmental and an economic resource. Throughout the last 15 years the Chesapeake Bay has suffered from elevated levels of pollution. Nitrogen and phosphorous from wastewater treatment plants, farmland, air pollution ...
    Related: economic impact, economics, environmental, environmental protection, environmental protection agency
  • Environmental Economics - 1,293 words
    ... Bay from construction and development helps the oyster and marine life population, the costs to agriculture and industry have an impact on the net economy. In 1986 Maryland enacted the Chesapeake Bay Critical Area Protection Program, which gave the government the right to regulate the land usage in the critical areas of pollution surrounding the Bay. Beaton and Pollock did an in depth survey using the Critical Valuation Method and Hedonistic pricing in order to define how this mandated change would affect the land value of the areas selected, affecting agriculture, industry and residential housing. The project is difficult because it is hard to compare different land values because of t ...
    Related: economic benefits, economic effect, economic value, economics, environmental
  • From The Big Bang To Life On Earth - 1,239 words
    ... gets more complicated. Two-thirds of solar type stars (M class) in our Milky Way galaxy are members of binary or multiple star systems. When two stars are orbiting close together, their planets orbit both stars. When the stars are far apart, their planets only orbit one of them. Some problems with this situation include: Planets may not be able to form unless the stars are at least 50 AU away (1 AU = distance from the Earth to the sun) and stable orbits can only be achieved where companion stars are at less than 20 million miles apart or farther than one billion miles.3 A planet's orbit pattern is also of concern. Earth's orbit is very stable and only has a small degree of ellipticity. ...
    Related: bang, extraterrestrial life, west virginia, time zone, galactic
  • Hydroponics: Gardening Without Soil - 906 words
    Hydroponics: Gardening Without Soil Have you ever thought of growing plants without soil? A science known as hydroponics will allow you to do just this. Hydroponics systems have been used since the time of the ancient Babylonians who used them to used them to grow their famous hanging gardens. Today, all around the world, fruits, vegetables, flowers, and ornamental plants are grown using hydroponics. The word hydroponics was derived from the Greek words hydros, meaning water, and ponos, meaning labor, or literally, water working. Hydro-ponics is simply growing plants in a water and balanced fertilizer solution. It is rapidly becoming the most common way of growing speciality crops and crops ...
    Related: gardening, soil, green house, circuit, greek
  • I Believed This Was A World - 1,976 words
    I believed this was a world In which all men were brothers Across the four seas Why then do the waves and winds Arise now in such turmoil? ~by Meiji Emperorar ~recited by Japanese Emperor in 1945 *Emperor Hirohito On August 6, 1945 at 8:15am history was made. The first atomic bomb called Little Boy was dropped in Hiroshima, Japan. Again on August 9 a second bomb was dropped on Nagasaki, Japan. Hundreds of thousands of people died. With hundreds of thousands more injured. These days of radioactive heat rays of more then 3000 degrees Celsius instantly burning skin, bulldozing houses and even evaporating human existence was not needed to win war over Japan, nor should it have been. Causing a co ...
    Related: world leaders, world peace, simon schuster, new zealand, incredible
  • Lake Tahoe On West Coast - 1,798 words
    Lake Tahoe On West Coast An Introduction Lake Tahoe is the pristine jewel of the West Coast, known around the world for its beauty. The Lake Tahoe area was even in the spotlight for the winter Olympic Games at Squaw Valley in 60's. Over the decades we have learned, by mistake, what needs to be done to protect the lakes' beauty and character. The lake is foremost known for its color and clarity, and has been capitalized on for these qualities. However, upon enjoying the lake and creating a tourist and recreational draw we have jeopardized the lake for all the features that we most enjoy and treasure. Simply put the clarity, color and beauty of the lake are in trouble, and the transparency is ...
    Related: coast, lake, lake tahoe, tahoe, west coast
  • Lake Tahoe On West Coast - 1,637 words
    ... rients into the lake. The adversity varies with the varying land disturbances. Air quality controls obviously aid in the fight to protect the lake, but more emphasis is needs to be geared towards wetland preservation and land controls and watershed management. Water Inflow and Algae Growth Waterflow into lake Tahoe is the number one contributor to the decline in clarity because of all the elements combining to impact the quality of input into the lake. Lake Tahoe is filled by 63 streams and thus creating a web linking the wetlands, groundwater, streams and lake ecosystems. Displayed earlier is the importance of each ecosystem to each other in creating a balance in the lake. The uniquenes ...
    Related: coast, lake, lake tahoe, tahoe, west coast
  • Methamphetamines - 1,006 words
    ... its manufacturing capabilities. (KBI, 1997, p.22) When a methamphetamine laboratory is seized, hazardous waste materials, such as chemicals and contaminated glassware and equipment, must be disposed of properly. Many of these materials are reactive, explosive, flammable, corrosive, and toxic. The danger is compounded by the fact that many federal, state, and local law enforcement officers lack adequate training in clandestine laboratory safety procedures and regulations, hazards, and other related health and safety issues. (University of Kansas, 1995, p.2) Although the quantities of hazardous materials found at a typical methamphetamine laboratory are relatively small when compared to w ...
    Related: health risks, drug abuse, fiscal year, pubs, facility
  • Osteoporosis - 1,490 words
    Osteoporosis Twenty years ago osteoporosis was a word used mainly by researchers and physicians. Over the past few years, there has been an explosion of information about this condition that can cause severe pain and crippling. No cure is known yet, but ways to lessen your potential for osteoporosis have been identified. Today, one in three Americans are 50 or older. The baby boom generation will begin to enter their retirement shortly after the turn of the century that is rapidly approaching. Thanks in part to medical advances and the emphasis on exercise and healthy diets, vast numbers of these baby boomers can expect to reach their eighties, nineties, and beyond. Yet, if present day trend ...
    Related: osteoporosis, congestive heart failure, important role, modern times, hysterectomy
  • Phosphorus - 1,137 words
    Phosphorus The element that is featured in this report is phosphorus. Phosphorus is a chemical element that human beings, animals, and plants need for normal growth. The main use of phosphorus is fertilizer. It was difficult to find a lot of different information on this element. Description Phosphorus is a nonmetallic chemical element that can exist in several different forms. The chemical symbol for phosphorus is P, its atomic number is 15, and its atomic weight is 30.975. Phosphorus was first prepared by the German alchemist Hennig Brandt in 1669; in the course of his search for the philosophers stone he obtained from a residue of evaporated urine a white solid that glowed in the dark and ...
    Related: phosphorus, water pollution, different forms, atomic number, stable
  • The Boisphere - 576 words
    The Boisphere The Biosphere: The biosphere is part of the earth in which life exists. It is 20 km thick from the bottom of the ocean to the lower atmosphere. It consists of three layers: the lithosphere, which is the land on the surface of the earth; the hydrosphere, which comprises of the water on the earth as well as water vapor in the air; and the atmosphere, which is made up of the air that surrounds the earth. The living organisms in the biosphere interact and affect each other in many ways. This is called a biotic factor. Similarly, there are non-living elements that have an effect on living organisms, these are considered abiotic factors. Examples of abiotic factors are air, temperatu ...
    Related: carbon dioxide, global warming, air temperature, ecosystem, sustenance
  • The Ecology Of A Rain Forest - 1,265 words
    The Ecology of a Rain Forest In 1980, the estimated amount of rain forests in the world was 40,000 square miles. This number decreases each year by roughly 1,000 square miles due to construction and the resources being used for profit. It is too bad, because the rain forest is one of the most beautiful places on earth. It is the most diverse, containing the most species of living things, much more than anywhere else, and most have yet to be identified. All rain forests are located on earth's "green belt", that is, the area roughly around the equator that covers all the area from Mexico and the northern area of South America, to Africa, to India, stretching out to Indonesia, the northern tip ...
    Related: ecology, forest, rain, rain forest, tropical rain forest
  • The Korean War - 1,446 words
    ... as the UN. pushed forward, they encountered Human Waves of Chinese troops.18 Combined with poor equipment and the brutal North Korean winter, the UN. forces had no choice but to retreat. The allies retreated back 130 miles to the North Korean border. Along with the UN. retreat, followed millions of North Korean refugees trying to escape China's assault. The situation was described by one G.I., There were literally millions of North Korean refugees blocking the roads by sheer mass, the silent columns moving without hope, shelter or food, avoiding other's tragedies of death, loss of total possessions. There were those who simply sank to the ground, too tired and defeated to move, the tossi ...
    Related: korean, korean war, north korean, nuclear weapons, dwight d eisenhower
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