... with runoff from nearby factories and even with pollutants from our own backyards. Demands of skyscrapers and condominiums wipe out our decreasing rainforests. This drudges wildlife from its natural home and into the havoc that is ours. Millions of acres of beautiful land are destroyed daily to satisfy the needs of mankind. But has anyone contemplated the needs of our wildlife? When their homes are incinerated, where do they run for shelter? Where will wildlife obtain its food and oxygen if the sources are gone? Not much is done about our destructive ways, we sit back and let money and greed take power. The solution is just a whisper away. The preserve ...
Words: 365 - Pages: 2
... the original rock producing the Pedler gneiss and Old Rag granite which can be observed in the Shenandoah National Park. In late Precambrian time this super continent began to rift apart under the tensional forces producing the Catoctin rift basalts that can be observed in the Shenandoah. As they rifted apart, they created a growing ocean called the proto-Atlantic or Iapetus after the father of Atlas, for whom the Atlantic Ocean is named. Towards the end of the Precambrian, the tensional forces changed to compression and subduction began. Volcanic islands grew as a result of andesitic volcanism associated with the subduction. With continued subduction and conve ...
Words: 1096 - Pages: 4
... because of the lack of a good explanation for the movement of the continents. Wegener's theory for the movement of continents was called continental drift. This was not believable at the time because there was no way the continents could move through the rigid ocean floor. During WWII, people started to explore the ocean floor and discovered evidence that would prove Wegener's ideas about land movement. The most interesting feature of the ocean was the ridges running along the ocean floor. It was discovered that earthquakes were abundant along the ridges that let magma flow from them. The magma would flow out these ridges and push the Earth away from it. This ...
Words: 516 - Pages: 2
... Minister of Natural Resources, 1991 The History of the Forest Forests have long been recognized as having vast power, both through their potential and how it has been viewed by humans, as well as through their effect on humans in sometimes subtle ways. The inherent properties of wood have always made it attractive as a versatile resource but there are other, more subtle ways in which it affects people. The tropical rainforests, responsible for producing most of the earth's breathable air, have been given the lofty title of "lungs of the Earth," and as stated by the Canadian Encyclopedia Plus '93, "forests provide an additional, although intangible, b ...
Words: 4784 - Pages: 18
... in Waterville Lake. The State and the mill implemented a dioxin minimization program in the mid-1980s and completed a modernization program in 1993 that will reduce water usage and discharges. About 94% of the estuaries and sounds in North Carolina fgully support designated uses. Agriculture, urban runoff, septic tanks, and point source discharges are the leading sources of nutrients, bacteria, and low dissolved oxygen that degrade estuaries. About half of the people in North Carolina use ground water as their primary supply of drinking water. Ground water quality is generally good. The leading source of ground water contamination is leaking underground sto ...
Words: 407 - Pages: 2
... have tripled, the global economy has quintupled and the world population increased twofold (Anonymous em_txt4.html). Richard Cromwell, general manager of SunLine Transit Agency in Southern California's 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 ...
Words: 1121 - Pages: 5
... their placement in India, then still lowland, primates spread throughout the world once more. Some returned to North America, only to be wiped out by rodents already living there. Others spread to Europe and the Middle East. By this time, Africa had just split from marsupial overrun Gondwanaland. About a million years later it reached the Middle East, and primates moved in. By now the world had cooled enough that the primates in Europe had been decimated to near extinction. They also migrated south, for the Mediterranean Sea was at that time dry lowland. Now almost all of the primates left in the world were in Africa, and the only marsupial that wasn ...
Words: 829 - Pages: 4
... 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 monosaccharides glucose and fructose. In the synthesis of a disaccharide molecule from two monosaccharides, a molecule of water is removed in the process of forming the new bond between the two monosaccharides. This type of chemical reaction, which occurs in the synthesis of most organic polymers from their subun ...
Words: 383 - Pages: 2
... gas vaporizes to fill the space. The valve is normal held shut by the pressure in the can, and by the coil spring directly below the valve stem. When the push button is pressed, it forces the valve stem down in its housing, uncovering a small a small hole which leads up through the stem to the nozzle in the button. This allows the product to be forced up the dip tube by the gas pressure in the can. The nozzle is shaped to give a spray or a continuous stream. To produce a fine mist, a propellant is used which mixes with the product. The two leave the nozzle together and the propellant evaporates a soon as it reaches the air, breaking the product in to tiny drop ...
Words: 583 - Pages: 3
... and from other health organizations in Belgium, France, and South Africa. Since July 1, 1995, 233 deaths have been reported among the 293 cases, in Africa (Garrett 195). Since 1976, researchers have searched for an origin and cure of the virus. Scientist have carried out numerous studies and investigations. Therefore, we now know what the virus is capable of doing, how those infected with the disease can be properly treated , and the need to perform prompt action to isolate the virus before it disperses (Garrett 192). The Ebola virus is a member of a family of RNA viruses known as filoviruses, which consist of the Marburg virus and four Ebola viruses: Ebola Zaire, ...
Words: 987 - Pages: 4
