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» Browse Science and Environment Term Papers
Devastation Of The Rain Forests
Number of Words: 1653 / Number of Pages: 7
... For every acre
that is lost in the burning season, there is one acre less that we have for
possible life saving medicines. About 70 percent of plants used in anti-
cancer drug come are the rain forest. We are slowly destroying the
environment and ourselves. Whether we realize it or not, the world could
quickly come to an ecological stop. Every day 144,000 acres of the
rainforests are cut down, slashed and/or put up in flames. In 1974,
Brazil started a forest fire of 20.6 million square feet (3,900 square
miles). The fire ragged out of control and was later marked the largest
forest fire in Br ...
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Chrones Disease
Number of Words: 1400 / Number of Pages: 6
... and the mesentery (outside covering of the intestines). The disease can be aggravated by a bacterial infection. It begins with the development of patches of inflammation on the intestinal wall, which can spread from one part of the digestive tract to another. It sometimes only develops in one place and does not spread any further. The inflammation causes the thickening of the intestinal wall, which sometimes causes an obstruction in these areas, or scar tissue, which narrows the passageways.
The symptoms of Crohn's disease sometimes act like an appendicitis attack. The ileum is usually involve ...
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Encephalitis
Number of Words: 1051 / Number of Pages: 4
... weeks to work and lasts
many years. There are many vaccines to prevent Encephalitis and some of the
most common diseases in this topic are Measles, Mumps and Rubella,
Meningitis, Japanese Encephalitis and Mosquito and Tic Bourne Encephalitis.
Measles, Mumps and Rebella viruses are all associated with Encephalitis and
all can be prevented with the same vaccine. Commonly known as the Measles
vaccine it is administered by injection under the skin in the thigh or shoulder.
Side effects from the measles vaccine may include a rash that rapidly fades and
a high fever that occurs five to 12 days afte ...
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Ensuring Our Future Through Conservation
Number of Words: 1001 / Number of Pages: 4
... and therefore need to be conserved as best we can. The rainforests provide safety and life to millions of kinds of life, they may contain cures to many of the world's diseases, and they provide over 60 percent of the world's supply oxygen to humans and other animals. Destroying these beautiful and key parts of the world would be catastrophic to mankind. There are many ways in which we can conserve our natural rainforests, and thus partly ensure our survival on earth. Two of these ways are through education of mankind on just how much we need the rainforests and what they can do to save the ...
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Fossil Fuels And Alternative Energy Sources
Number of Words: 993 / Number of Pages: 4
... air has many consequences including smog, which is the most noticeable of these problems. The hazy smog that hangs over us in the summer is actually ground level ozone; the most harmful pollutant of our air (Information 59). Pollutants of the air we breathe are very dangerous and cause many problems especially to people with breathing disorders. For instance, the E.P.A. estimates that emissions of toxic material like these “oxides” cause some 2000 cancer deaths a year (Information 61).
The rainwater that falls through this polluted air also poses a major risk. Industrial plants and au ...
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Crash Course In Density
Number of Words: 419 / Number of Pages: 2
... abandoned Air Force airstrip. Unfortunately, the
airstrip had been converted to a race track, complete with race cars, fences,
and spectators. The 767 crash landed, and, fortunately, no one was killed.
Their were many contributing factors that made this plane run out of
fuel. First of all, the computerized fuel gauge was not working, and a
maintenance worker said , incorrectly, that the plane was still certified to fly.
To measure the amount of fuel remaining, they use a drip stick method. They
discovered that their was 7 682 liters in the tank. However, they had always
measured fuel in the pas ...
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Bottle Rockets
Number of Words: 452 / Number of Pages: 2
... the water goes. Which is why one time when we shot the rocket it flew at an angle. Also it shows why the launchers had stoppers, because if they didn’t the cork wasn’t strong enough to hold that pressure and would cause the rocket to begin flight prematurely. His second law can be used to describe how high and fast the rocket will go. If you wanted it to go really high and fast you would just pump more pressure into it then if you didn’t want it to go that high. You can determine how much force is needed by multiplying the mass by the acceleration.
Our rocket was fairly decent the only p ...
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Seeing The Vessels Of The Retina
Number of Words: 430 / Number of Pages: 2
... looking at the floor, not the light.
RESULTS
I am writing down what everyone recorded for me. I am first:
JOSH: I could see black blood vessels with orange in the background...it looked
like a lot of dead tree.
BRENDA: The blood vessels resembled jagged lighting bolts or trees in the winter
time.
LAURA: I saw crooked lines that didn't stand still, but kept changing.
DARWIN: The image appeared to be in front of the body and quite enlarged. I
found that it takes practice to see this.
BRYAN: Sometimes your eye gets tired before you can successfully do this, so you
may have to use the othe ...
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Cancer 4
Number of Words: 1512 / Number of Pages: 6
... while malignant tissue is abnormal and has an unstructured appearance. Of greater importance, benign tissue does not metastasize, or begin to grow in other sites, like malignant tumors do. Cancer always refers to metastasized tumors but the term tumor is not always necessarily cancer. A tumor is any living tissue that is #1 distinguishable as abnormal living tissue.
After a cancer forms, it can also change from a benign to a malignant state, therefore making the cell grow at a more rapid rate. The development of the cell starts when it forms notable abnormalities in chromosomes an ...
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Aids 5
Number of Words: 1096 / Number of Pages: 4
... partners had AIDS; and the children of parents
with AIDS. However since 1989, heterosexual sex was found to be the
fastest growing means of transmission of the virus, with 90 percent of the
new cases coming from heterosexual sex.
How AIDS Is Spread
AIDS is transmitted by direct contact of the bloodstream with body
fluids that contains the AIDS virus, particularly blood and semen from an
HIV-infected person. The virus is usually transmitted through various forms
of sexual intercourse, the transfusion of virus-contaminated blood, or sharing
in HIV-contaminated intravenous needles. ...
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