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» Browse Science and Environment Term Papers
Malthus' Principle Of Population: Today And The Future
Number of Words: 1927 / Number of Pages: 8
... the diet of todays members of society living in poverty.
Food projections are extremely uncertain since natural disasters are unpredictable and may increase if the forecasted effects of global warming materialize. Also, environmental degradation is increasing while water allocations are decreasing.
Society will not be suddenly surprised by a “crisis point” at which food supplies are no longer adequate. Todays isolated anarchy and famine (which is politically inspired) in Africa could easily turn into a world wide sustenance inspired problem during the first half of the next century.
Humans are the ...
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Coral Reefs 3
Number of Words: 3393 / Number of Pages: 13
... The body of a coral animal consists of a polyp, which is the living portion of the coral. A polyp is a hollow, cylindrical structure attached at one end to a surface, the other end is a mouth surrounded by tentacles which gather food and can sting prey to paralyse it. Polyps live in colonies, which grow from 1 to 7 inches, depending on the species. Coral polyps are classified as animals. Microscopic algae live within the animal tissues in a symbiotic relationship. The algae turn sunlight into carbon and sugars, which are then available to the polyp. In turn the polyp filters particles out of the water ...
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Nuclear Power And Its Uses
Number of Words: 527 / Number of Pages: 2
... energy and be
used for many purposes. Nuclear power reactors generates heat that is converted
into steam. The steam can be used directly for energy. This energy is used in
transportation. Most military subs are now ran by nuclear energy. The most used
purpose of nuclear energy can also be used to generate electric power for
example in a commercial nuclear power plant. Another way to produce nuclear
energy is by gas-cooled reactors with either carbon dioxide or helium as the
coolant instead of water. This method is used mainly in commercial nuclear
plants in the United Kingdom and France due to the lac ...
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Mountain Gorillas
Number of Words: 554 / Number of Pages: 3
... Sometimes the two groups would even stay together, and then eventually separate. There are many rumors about gorillas being very violent, but there are no reports about it. There are times when they have little mock fights, but there is never any blood shed in them.
Right now there are not too many you will find in the Virungas. Their population is only in the hundreds. In 1960, there was an estimated 450 gorillas still remaining in two isolated habitats. In a 1981 census, it gave a figure of about 254 gorillas. Right now there is somewhere between 400-450 that have survived.
There are s ...
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Radon
Number of Words: 1533 / Number of Pages: 6
... hazard if the water is agitated or heated, allowing the gas to escape
and elevate the levels that are in the building.(6)
Health Risk
The Surgeon General's office reports that indoor radon gas is a national
health problem. This gas causes thousands of deaths every year.(7) These
deaths are a result of lung cancer, which is caused by the radioactive particles
that make up the gas.(8) The likelihood of getting lung cancer from radon
depends on: the concentration that you are exposed to, the amount of time that
you are exposed, and whether you smoke or not. The radioactive particles are
inhaled whe ...
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Cloning 7
Number of Words: 611 / Number of Pages: 3
... firmly, we are taught to believe each one of us is unique. Is that
idea undercut by cloning? That is, if you can deliberately make any
number of copies of an individual, is each one special? How special
can clones feel, knowing they were replicated like smile buttons. "We
aren't just our genes, we're a whole collection of our experiences,"
says Albert Jonsen. But the idea, he adds, raises a host of issues,
"from the fantastic to the profound."
When anesthesia was discovered in the 19th century, there was a
speculation that it would rob humans of the transforming experien ...
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Steps Towards An Ecosociety: Dealing With Air Pollution
Number of Words: 3435 / Number of Pages: 13
... an ecosociety must be aimed at having the greatest environmental impact while
creating minimal economic distortions.
For the purpose of this essay, pollution shall be identified as follows
"...the deliberate or accidental introduction to the environment of contaminants,
in the form of either wastes or products " (Bryner, 10). This essay will deal
with the problem of air pollution. Air pollutants come from heavy industry,
fumes from automobiles, jet planes and the like. When speaking of the automobile
alone "...each gallon of gas burned releases 22 pounds of carbon dioxide in the
atmosphere ...
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Hepatitis B 2
Number of Words: 649 / Number of Pages: 3
... infected. This is not as scary as it seems, for you cannot contract the virus through sneezing, coughing, or holding hands.
A surprising fact about hepatitis B, considering it is preventable, is that
one in twenty people are or will be infected in their lifetime. There are one
million people infected in the United States. More than 350 million people
worldwide are chronic carriers of the virus. A chronic carrier is someone with the virus in their blood, and can who can pass the disease to others.
Fifty percent of those infected with the virus (a.k.a. HBV) do not develop
sympto ...
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Hammerhead Sharks
Number of Words: 965 / Number of Pages: 4
... zygaena)-Bronze with dusky fin tips, it can grow
to thirteen feet.
4. Great hammerhead (Sphyrna mokarran)-Attaining a length of a possible 18 feet,
this is the largest and most dangerous of all the hammerheads.
One of the most interesting things about the hammerheads is the unique
shape of their heads. Ever since scientists started to study the hammerhead
they have speculated about the use of the hammer. The hammer is a complex
structure and probably serves more than one function. The most important
function of the hammer according to scientists is increased electroreceptive
area and it's sensory ...
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Narcotics
Number of Words: 533 / Number of Pages: 2
... is often mixed
with cheaper substances, so that the dealer can make a larger profit. Since addicts don't know about the purity of a substance, many die because of overdoses. In an overdose of heroin, the lungs stop functioning, and the person dies from lack of air.
There can be other effects of heroin addiction, one is that people who have illnesses may have them go untreated because the heroin has masked the pain. Another is that peoples veins
collapse, from having been injected into to often. Their skin may also be covered with sores from needles. Dirty needles can often cause serious infectio ...
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