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» Browse Science and Environment Term Papers
Lung Cancer
Number of Words: 689 / Number of Pages: 3
... of (Scientific American, “”). Second-hand smoke, inhaled by non-smokers, increases a person’s chance of acquiring (Beau Halton). Men who smoke increase their chance of dying from about 23 times and women increase their chances 13 times (“ Awareness Campaign,” 3/23/99). However, may also be caused by long term exposure to radon, a naturally present radioactive gas (SIRS, “What is Cancer?”). The residue of burned petroleum and coal can contribute to (Scientific American, “”). The development of seems to be also affected by genes. The gene ...
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Orangutans
Number of Words: 1005 / Number of Pages: 4
... biochemically, and by their cranial characteristics.
There is a great deal of individual variety in the orangutan. "Each
orang-utan had a distinct personality and in dealing with such highly
intelligent animals in captivity, the keeper's knowledge of the individual was
probably more important than the knowledge of the overall behaviour patterns "
(Markham, 1980). Orangutan males, however, appear to be totally intolerant of
one another, especially the Borneo males who are even aggressive towards females
and infants. Male orangutans' participation in social groups is limited ...
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Psychology-Dreams
Number of Words: 1952 / Number of Pages: 8
... are rather common, but some people tend to experience some bizarre dreams. Early in the 20th century, Sigmund Freud believed that dream content was composed of the mental processes different from that used in the awake state. He believed this was what dominated the dreaming mind. He described this "process" as characterized by more primitive mechanisms, by rapid shifts in energy and emotion, and by a great deal of sexual and aggressive content derived from childhood. (Hartmann, E. 1997)
There are 4 stages of sleep. The individual goes from awake to stage 1, then to 2, 3, and finally 4, the ...
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Computer Graphics
Number of Words: 2871 / Number of Pages: 11
... as hard to control as dinosaurs must have been in their own time. Like dinosaurs, the hardware systems, or muscles, of early computer graphics were huge and ungainly. The machines often filled entire buildings. Also like dinosaurs, the software programs or brains of computer graphics were hopelessly underdeveloped. Fortunately for the visual arts, the evolution of both brains and brawn of computer graphics did not take eons to develop. It has, instead, taken only three decades to move from science fiction to current technological trends. With computers out of the stone age, we have moved into ...
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Indicactor Lab
Number of Words: 430 / Number of Pages: 2
... conclusion that substance C is ammonia.
Test-tube D: Test-tube D contained lemonade. The substance reacted to blue litmus paper, and red litmus underwent no changes. It had no effect on Phenolphthalein, and its pH value was 3, a strong acid. Knowing that lemons are very acidic, and that the substance was yellow and sweet smelling, I concluded that substance D was lemonade.
Test-tube E: I could not come to a conclusion on what substance E was. It reacted weakly to blue litmus paper, and it did not change red litmus. It had no effect on Phenolphthalein, but its pH value tested as 7. This cannot be cor ...
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Alternative Energy Sources
Number of Words: 1121 / Number of Pages: 5
... Coachella Valley, is a firsthand proponent of alternative fueling. Having to smell the awful odor emitted day after day from his fleet of forty-seven buses, Cromwell (Silverstein 10) encourages the changeover. Phil Bostley, Mayor of Indian Wells, a subsection of Coachella Valley, agrees wholeheartedly by saying petroleum-base fuels will go the way of the buggy whips back in the 1930's (Silverstein 10).
Fortunately, for those who run such fleets, a mandate issued by the Energy Department required operators to "begin purchasing alternative fuel vehicles" (Silverstein 10) as of September 1, 1996. ...
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Acid Rain
Number of Words: 1940 / Number of Pages: 8
... found the problem it was already very large. Detecting an acid lake is
often quite difficult. A lake does not become acid over night. It happens over a
period of many years, some times decades. The changes are usually to gradual for
them to be noticed early.
At the beginning of the 20th century most rivers/lakes like the river
Tovdal in Norway had not yet begun to die. However by 1926 local inspectors were
noticing that many of the lakes were beginning to show signs of death. Fish were
found dead along the banks of many rivers. As the winters ice began to melt off
more and more hundr ...
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Rabbits
Number of Words: 343 / Number of Pages: 2
... that changes color is commonly called the snowshoe rabbit. The hare
has strong hind legs that enable it to hop 43 miles per hour (69 km/h), as
fast as a race horse. Lagomorphs must be able to hop about quickly to
escape from predators. Another lagomorph, the pika, dwells among the craggy
mountain slopes of Asia and North America. In late summer the little pika
might be seen guarding a stack of freshly cut hay with determination. A
pika bites off tender shoots of grass and plants and piles them up into
stacks 2 to 3 feet (60 to 90 cm) high. The hot summer sun dries the grass
and plants and pres ...
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Pesticides Are Affecting Our F
Number of Words: 2666 / Number of Pages: 10
... by pesticides than adults because, they are strange eaters, they breath at a higher rate, and tend to spend more time on the ground were chemicals may settle and then enter a child’s body through breathing, orally, by touching something with a residue and then putting their fingers in their mouth, and through a child’s skin. Pesticides will drastically damage the future health of our children if people don’t act now.
CHILDREN’S HEALTH IS AT RISK THROUGH THE FOOD THEY EAT
Every year, tens of millions of pounds of carcinogenic, neurotoxic, immunotoxic, and otherwise hazardous pesticides are thro ...
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Experiment To See If Soaking A Golf Ball Affects Its Distance
Number of Words: 1434 / Number of Pages: 6
... a rubberlike sap from
the Malaysian sapdilla tree. The material was heated to soften it and then
hand-formed into a solid, one piece ball.Gutta percha was black, so the
early balls were painted white. Easier to make, less expensive, and more
durable, the gutta revolutionized golf. When golfers discovered that balls
and nicks flew longer and straighter then new ones, manufactures began to
give them a textured, even pattern surface. The most popular early pattern
was the bramble, which featured raised round bumps in concentric circles.
the first wound rubber ball was introduced in 1898. the three-pi ...
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