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Million Years Ago 65 Million Years
2,114 wordsThe "Nemesis Theory" was an outgrowth of the discovery of Alvarez et al. , that the impact of a large (10 km diameter) comet or asteroid was responsible for the great mass extinction that took place 65 million years ago. Studies of the fossil record by Dave Raup and Jack Sepkoski shows that this was not an isolated event, but one of several mass extinctions that appear to occur on a regular 26 million year cycle. Their original paper analyzed marine fossil families, and was published in the Proc...
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Internal Combustion Engine Twenty Five Years
1,716 words... can be made to fit these smaller cars making them inaccessible to some cars and trucks, safety will increase because of the maneuverability and low speed of the NEV and because of their small size there will be more space available to be put to other uses. These NEV's will lead to non-industrial neighborhoods. Neighborhoods will keep the industrial world and all of its problems out by making the roads smaller so they handle only NEV traffic. Households will tend to "run" less and instead of ...
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Gene Pool Northern Hemisphere
1,207 wordsIntroduction It is unlikely that any family of fish has received as much attention as the Salmoninae. Many have a particularly heart-felt interest in the Salmoninae (trout, salmon, and char) because they love to fish. But man often destroys that which he loves, and the Salmoninae are no exception to this phenomenon. Exploitation of these fish has led to the extinction of certain species in some areas, but the attempt to preserve our valued fisheries has resulted in extensive research on the Salm...
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Photosynthesis Changing Carbon Dioxide And Water To Sugars
643 words6 H 2 O + 6 CO 2 gt; C 6 H 12 O 6 + 6 O 2 Six molecules of water plus six molecules of carbon dioxide produce one molecule of sugar plus six molecules of oxygen Photosynthesis is the process that green plants and certain other organisms use to change carbon dioxide and water into glucose (sugar) using the suns energy. Photosynthesis provides the basic energy source for practically all living organisms. A very important byproduct of photosynthesis is oxygen, which we cant live without. Photosynth...
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Burning Of Fossil Fuels Earths Atmosphere
1,144 wordsClimate Changes towards Global Warming For centuries human race has had a very strong detrimental influence upon natural environment. One of the largest areas of environmental concern is human-induced climate change. Through technological advancements human beings have accelerated earth on its course towards destruction. Here we clearly see that current state of development of the technology and the dependence of industries on energy resources lead our planet to some critical point where further...
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Carbon Dioxide Emissions Global Climate Change
772 wordsBush Wont Regulate Carbon Dioxide Updated 7: 30 PM ET March 13, 2001 By SCOTT LINDLAW, Associated Press Writer WASHINGTON (AP) Backing off a campaign pledge, President Bush told Congress Tuesday he will not regulate carbon dioxide emissions from power plants. The decision, outlined in a letter sent to a Republican senator, came after furious lobbying from the coal industry. It was a blow to conservationists who see curbing emissions of such greenhouse gases as key to reducing global warming. The...
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Fossil Fuels Technological Developments
1,080 wordsThe world is changing rapidly. A single technological development can lead to an infinite number of consequential developments each of which having varying impacts on humanity. These impacts, or indicators, display the results of technological development. Climactic, global economic, social, and energy related indicators are important in showing humanity's use of techno science, and demonstrate that certain political and economic changes are needed so that techno scientists can use their knowled...
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Fossilized Story Of Mr Creative Writing The Fossilized Story Wolly
521 wordsCreative Writing: The Fossilized Story Of Mr. Creative Writing: The Fossilized Story Of Mr. Allosaurus Creative Writing: The Fossilized Story of Mr. Allosaurus As the mud starts to surround me I am no longer able to breathe. I catch my last gasp of air and feel a few last raindrops fall on my head. I say goodbye to my Earth and my land. My mouth and lungs fill with mud that travels throughout my system. I am blinded by the wet black soil that has been down poured on so hard that it has become de...
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Hemp Seed Oil Cannabis Sativa
1,633 words? Make Hemp Rediscovered Hemp Rediscovered? Make the most of the hemp seed and sow it every where, ? a quote by George Washington in 1794 (q. In? Get the Scoop? ). In early American history hemp was an essential crop, it was used to make rope, sails, lamp oil, and almost anything else. Henry ford built a car out of hemp that ran on hemp fuel and oil. The original Levi jeans were fashioned out of hemp fibers. And even the first drafts of the Declaration of Independence and the US Constitution wer...
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Million Years Ago Millions Of Years
923 wordsReptiles Enjoyed Warm Arctic (Global Warming) An article written by ABC News writer Kenneth Chang discusses the change in climate of the arctic from ninety million years ago. Seven hundred miles from the North Pole, lies an island called Axel Heiberg, a barren land that scientists have dug up fossil bones of a cold-blooded reptile known as a champsosaur. How does this happen in an arctic, freezing land? How does a reptile that needs the warmth of the sun to survive, live in a frigid climate? Wel...
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Burning Of Fossil Fuels Greenhouse Gases
888 wordsMany people disagree on the issue concerning global warming. Some believe that human activities, various forms of polluting, are the main cause of global warming. Others think that not only have humans not affected the planet by any significant amount, but that not much global warming has even occurred. Many scientists think that pollution is the cause of global warming and the greenhouse effect. There is a lot of evidence to support this theory. In the United States alone, almost 15, 000 pounds...
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Fossil Fuels Renewable Energy
312 wordsDebate Topic: Fossil Fuels and Alternative Sources Most people in this world but especially in the U. S. think that fossil fuels are never ending. However, they are wrong and completely take them for granted. Therefore, if they do not try to use and find other sources for energy soon then fossil fuels will become extent. So I have taken it upon myself to look into other sources of energy and give my viewpoint about them. I looked into a couple alternative sources. First, technology and manufactu...
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Green House Effect Effects Of Global Warming
1,263 wordsGlobal Warming is a great climatic phenomenon. The earth s temperature is rising and it is due to human activities. This rise in Earth s overall average temperature may seem minor or even irrelevant, but it is problem that should be taken seriously by the people and governments of this planet. Global warming is a serious threat to man s well being that he has brought upon himself. Global warming is caused by the Green House Effect. The Green House Effect is a natural part of the earth s atmosphe...
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Washington D C Global Warming
814 wordsGlobal Global Warming Global Warming Global warming is a huge environmental and economic challenge that we are facing in the 21 st century. Global warming is also commonly referred to as the greenhouse effect. Global warming can affect entire ecosystems and climates, which in turn affect the way in which people live. We in our lifetimes will not be around to see the major outcome of global warming; however, it is still a major concern. It has come to be known that the major increase in temperatu...
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Million Years Ago 000 Years Ago
1,421 wordsWorld History Human Evolution Final Copy January 19, 97 How did the early man evolve and change into the way we are today? Human Evolution, the natural development of the species Homo Sapiens, or human beings. The initial man, called the Hominid was short, not intelligent, and very ape like. The next man lived in the stone age; his name was Homo Habilis. After Homo Habilis, Homo Erectus evolved. He was smarter, more efficient, and walked up-right. And he leaded to us, Homo Sapiens A lot of fossi...
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Million Years Ago 000 Years Ago
908 wordsArdipithecusHuman Evolution Human Evolution Ardipithecus radius This species was announced in September 1994. It is thought to be the oldest known hominid species. It was dated at 4. 4 million years old. The majority of the fossils found were skull fragments. Other evidence suggests that this species was bipedal. The individuals were about four feet tall. Some fossils found indicate that radius may have been a forest dweller. The teeth resemble something between earlier apes and A. afarensis. Th...
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Million Years Ago 000 Years Ago
1,149 wordsOur Human Evolution Human Evolution Our farthest believed ancestor is believed to be Australopithecus afarensis. This species, which lived between three and four million years ago, is believed to be the first real hominid because it is the oldest, and most primitive of any definite hominid form thus far found. Evidence from fossilized footprints, as well as pelvic and leg bones, which were similar to modern hominids, led scientists to believe that they could walk upright. Its teeth resembled mor...
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Modern Critical Interpretations Cd Rom Microsoft
2,243 wordsThe search for knowledge about the origin of humanity is as old as its inhabitants. Since the early 1800 s mankind has narrowed the debate to creation by a Supreme Being and the theory of evolution. Ever since then, science has been at odds against religion. Now it appears that science is returning to religion. Scientists are finding proof that the universe was created by a Supreme Being. The word evolution refers to the change of something over a period of time (Websters 634). In biology, the t...
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Modern Critical Interpretations Cd Rom Microsoft
2,192 wordsIntelligent Design of the Universe The search for knowledge about the origin of humanity is as old as its inhabitants. Since the early 1800 s mankind has narrowed the debate to creation by a Supreme Being and the theory of evolution. Ever since then, science has been at odds against religion. Now it appears that science is returning to religion. Scientists are finding proof that the universe was created by a Supreme Being. The word evolution refers to the change of something over a period of tim...
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Homo Habits Missing Link
1,206 wordsAustralopithecus afarensis, or Lucy as also know, was discovered in November 1974. She was the most complete hominid skeleton that had been found in the world at that time. Being the only complete skeleton that had been found that was older than Neanderthal, she was a great discovery, particularly as she had many distinctive features putting her in a class of her own. This led many scientists to believe that Lucy was and is the missing link in the evolution of mankind. There were however, a numb...
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