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The Chlorine Debate: How White Do You Want It?

... dioxide. In 1810, the English chemist Sir Humphrey Davy determined that chlorine was a chemical element and named it from the Greek word meaning greenish-yellow. One hundred and eighty-five years later, chlorine compounds are ubiquitous components in the manufacturing of paper, plastics, insecticides, cleaning fluids, antifreeze, paints, medicines, and petroleum products. The unfortunate and unavoidable by-product of these manufacturing processes is dioxin, one of the most toxic substances on the planet earth. Dioxins are also produce ...

Number of words: 1421 | Number of pages: 6

Nuclear Power

... atoms that emit energy for a period of time that varies with the isotope. During this active period, while the atoms are 'decaying' to a stable state their energies can be used according to the kind of energy they emit. Since the mid 1900's radioactive wastes have been stored in different manners, but since several years new ways of disposing and storing these wastes have been developed so they may no longer be harmful. A very advantageous way of storing radioactive wastes is by a process called 'vitrification'. Vitrification ...

Number of words: 1824 | Number of pages: 7

The Greenhouse Effect

... now, but none of these scientists believe in the same thing. The ones that do think that it will come at a different time. So people are still optimistic on what is going to happen, and when it is going to take place. First, to understand what the greenhouse effect is, we must first understand what a Greenhouse is. A Greenhouse is a building made either of clear plastic sheets, or of glass. The sun's rays go through the glass, and heat up the air inside the building, and they have a hard time getting out. These rays get trapped insi ...

Number of words: 305 | Number of pages: 2

Alcohol

... 3000 years before christ! Despite the pleasure and relaxation that can bring to some, it can also destroy others self-wort and integrity. affects virtually everyone, whether the individual is himself an ic, is the family member of one, or has been the victim of an related crime. In spite of the dangers presents,it is still in countless social cirles. penetraes all ages, educational, occupational, and socioeconomical boundaries. Each year it is estimated that ten percent of all deaths are related to abuse. Am astonishing fifty perce ...

Number of words: 708 | Number of pages: 3

Types Of Land Features

... there is a lot of rain and the plants begin to grow back their leaves from the fall. In the summer, the temperatures reach their highest. In the fall, trees shed their leaves and the temperature begins to cool. The deciduous forest consists of the most variety of plant species than any other biome. The forests are layered by the canopy, understory, shrub layer, and herbal layer. Trees can grow up to 3-5 feet in diameter and 80-100 feet tall. Animal life is abundant. There are fewer large animals but an absorbent amount of small ...

Number of words: 2108 | Number of pages: 8

Functions Of The Digestive And Kidney Systems Of The Body

... the release of acid and pepsinogen into the stomach. These chemicals stimulate more stomach mobility. This mobility starts to break up the hot-dog (chyme) in order to give it more surface area so that it can better mix with the acid and pepsinogen. Gastrin also relaxes the pyloric sphincter. Chyme is then passes into the small intestine for main absorption and digestion. The pH in the stomach returns to normal and the stretch receptor stop getting stimulated. #2 You are having severe stomach cramps, the doctor says that you secretin rec ...

Number of words: 1808 | Number of pages: 7

The Wolverine

... Wolverine ranges from northern Europe and Siberia through northern North America. Their distribution once extended as far south as Colorado, Indiana, Pennsylvania, and perhaps Michigan. It looks like a weasel maybe because it is in the weasel family.It has black and brown fur and long claws.It’s legs are short but strong. The Wolverine is usually solitary except for members of the opposite sex and a female's young. After the females give birth they hide with their young. The mother defends her territory and intruders are not tolerated. T ...

Number of words: 289 | Number of pages: 2

Gallium

... Lecoq de Boisbaudran, who observed its principal spectral lines while examining material seperated from zinc blende. Soon after he isolated the metal studied its properties, which coincided those that Dmitrii Ivanovich Mendelev had predicted a few years earlier for eka-aluminium, the then undiscovered element lying between aluminum and indium in his periodic table. Though widely distributed at the Earth's surface, gallium does not occor free or concentrated in independant minerals, except for gallite. It is extracted as a by-product from zi ...

Number of words: 487 | Number of pages: 2

Acid Rain 4

... do not agree that acid rain has in fact been caused by man made pollution because of the fact that rain is naturally acidic. This widespread disagreement delayed international action to reduce pollution for some time. However, with the coming of the 1970’s an awareness of acid rain spread, and with that awareness, possible solutions were proposed. These solutions involved making environmental changes on the international, industrial, and personal levels. Just how does acid rain form, and what consequences does it pose to our environment? ...

Number of words: 1614 | Number of pages: 6

Crude Operatons - Oil And The Environment

... The Environmental Protection Agency, or EPA, claims that "with offshore drilling comes substantial routine pollution in the forms of oil and gas." By routine, the EPA means "a near constant flow from oil rigs and derricks" (Sisskin). Nothing is ever done about the pollution, and until something is done about the oil being put into the sea, our oceans are at risk. So just how much oil is put in the oceans? According to a study conducted by the World Research Institute, "…between 3 and 6 million tons of oil are discharged into the oceans ...

Number of words: 1862 | Number of pages: 7

Extra Terrestrial

... There are many theories on whether UFO's exists ranging from government cover-up to the another dimension breaking the barrier between our worlds…., from UFO's traveling through black holes to there being millions of other universes with intelligent life. Yet the only evidence of any extraterrestrial beings come from sightings by ordinary people. World governments tried to keep the phenomenon of extraterrestrial life forms secret. Due to the fact our society is gullible believing every myth that one might tell to another. This co ...

Number of words: 404 | Number of pages: 2

Introns And Exons

... the mRNA to become true functioning RNA it must under go several stages of modification. At first, when the mRNA is produced, a cap is added enzymaticully to the 5¹ end of the RNA by linking a 7-methylguanosine residue by a triphosphate bond this is called the G-cap. The G-cap is necessary for translation. The subunit of the ribosome recognizes the G-cap and then finds the initiation codon to start translation. As the mRNA comes finishes transcription, the Poly A tail is added to the 3¹ end. As the two ends are placed the mRNA becomes pr ...

Number of words: 653 | Number of pages: 3

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