... one such instance. Historically, wildfires had been left to burn uncontrolled for weeks. Fires were caused by different sources such as lightning or human hunters who wanted to chase animals out of the woods. As prolonged as these fires were, they had limited catastrophic effects on the nomadic humans. This is due to the low population density and the fact that the fires were not very intense. As people began to change from a hunting-gathering society to agriculturists, they settled in communities. Homes built among the wild brush were perfect prey to wildfires. Initially, wildfires were put out immediately ...

... liable for the cost of waste removal and other remedial action. If potentially responsible parties can be identified, then they can be held liable for either cleanup costs incurred, or for replenishment of the Superfund. Who is a Potentially Responsible Party? 1.) Owners and operators of waste sites. i) CERCLA actions against dissolved corporations are permissible ii) If one is the owner or operator, liability may attach even if some other party in the past placed hazardous wastes there. ( The seller of a foundry was found liable under CERCLA when it was sold for $25,000, but was appraised at $200,000 ...

... burning of fossil fuels and the release of nitrous oxides into the atmosphere. Production of coal, oil, natural gas and nuclear power each expanded by 1 percent in 1995 (Brown, 16). Globally, the ten warmest years out of the last 130 have all occurred in the eighties and nineties (Brown, 15). These figures demonstrate that humanity is not effectively controlling and limiting its use of fossil fuels. As a result, acid rain falls upon the earth destroying what is left of the planet's forests and, an estimated 37 percent of the fish species that inhabit thelakes and streams of North America are either in jeopardy or ext ...

... four thousand diseases that are known to be inherited from our parents, is the number-one killer. Each day three people die from it. Despite this bad news, CF is no longer the nearly automatic death sentence it used to be. Improved treatments are allowing more than half of the people with CF to live into their mid-twenties, and some are already in their forties, fifties, and even sixties. It will be very important for you t frequently check with doctors for new medical advancements. More and More discoveries are made every day and one of them very well might be able to help you situation. You cannot catch fro ...

... to escape. The charcoal cubes and shavings will absorb the heat in the box and store the excess heat allowing the flow to continuously warm the oven. The tin foil will reflect heat and subsequently heat up the oven. The polyurethane material will trap the heat inside the oven. The mirrors will help the heat stay inside the box. Materials used: Shoe Box Tin Foil Sheets of Glass Charcoal Cubes and Shavings Scissors Glue Knives Polyurethane Non-Glossy, Black Spay Paint Four (4) Wood Pegs Mirrors Sealer ...

... decreases. Therefore, acid rain has a lower pH value, than normal rain Acid rain is a serious, and damaging national problem. I don’t think people are fully aware of the serious consequences that acid rain have on many different factors. For one, Acid rain causes acidification of lakes, streams, and other bodies of water. Because many lakes and streams suffer from chronic acidity (a condition which water has a constant low pH level) this makes them susceptible to acid rain because of their limited ability to neutralize acidic compounds. This results in many lakes and streams being completely dead of fish and al ...

... Acupuncture is used in the treatment of a wide variety of medical problems. It is used for ear, nose, and throat disorders, respiratory disorders, Gastrointestinal disorders, Eye disorders, and Neurological and Muscular disorders. The needles used in acupuncture are usually only inserted from 1/4 to 1 inch deep into the skin. There is usually no pain in acupuncture. Usually if any pain it is only mild. Most of the needles now used in acupuncture are disposable needles. Acupuncture does not always only involve needles. They may also use other methods such as moxibustion, cupping, electronic stimula ...

... The oceans contain tons of microscopic plants, or phytoplankton which lives on carbondioxide dissolved in the seawater. Oceans absorb up to 2 billion tons of carbon dioxide a year, making the sea one of the Earth's key defenses against global warming. Oceans have a great potential for heat storage, the top two or three meters hold as much heat as the entire atmosphere. This warmth is continuously redistributed by surface and convection currents. Without the ocean there would be no life on land. Most of Earth's living space, is ocean, about 97%. And also 97% of Earth's water is ocean. There is a greater var ...

... episode caused by a traumatic event, a biochemical disorder, or an inherited disorder. Depression can result from an emotionally or physically stressful incident. This has been termed by psychologists as first depressive episode. Possible causes include the death of a loved one, an abortion or miscarriage, a move to a new home or job, the end of an important relationship, financial problems, a chronic illness, or any other traumatic event. For many people, these incidents produce a mild to moderate case of the blues. They feel "down" for a while, but they are able to continue functioning and perform ...

... group. These functional groups make sugars highly soluble in aqueous solution. In solution the aldehyde or ketone group has a tendency to react with one of the hydroxyl groups, producing a ring structure. The alpha glucose, which is the base of many polymers, is an energy source in organisms. Although glucose is the common transport sugar for vertebrates, sugars are often transported in other organisms as disaccharides. Sucrose, commonly called cane sugar, is the form in which sugar is transported in plants from the photosynthetic cells to other parts of the plant body. Sucrose is composed of the monosaccharide ...