.... miles out from the earth's surface. However, this layer is not a uniform layer, from top to bottom. As one moves out from the planet's surface the atmosphere becomes progressively dense. This atmosphere can be divide into four major regions. The first region is the troposphere which extends about 6.5 miles above the planet's surface. The troposphere contains the oxygen that we breath and is where a majority of our weather takes place. Beyond the troposphere is the second region of the atmosphere, the stratosphere. The stratosphere extends from roughly 6.5-30 miles from the earth's' surface. The air on this region is much less dense than in the troposphere .....

.... of a world wide outbreak lies within the education of what the virus is capable of doing, how victims can be properly treated , and by performing prompt action to isolate the virus before it has dispersed. The virus is a member of a family of RNA viruses know as filoviruses. Marburg virus and four viruses: Zaire, Sudan, Reston and Tai are the five different viruses that have been known to cause disease in humans, while Reston only causes disease within monkeys. Filoviruses, arenaviruses, flaviruses, and bunyaviruses are the viruses responsible for causing viral hemorrhagic fevers. All forms of virus of viral hemorrhagic fever begin with fever and muscl .....

.... the advantages of digital TV. Digital TV will allow for a wider screen display, like those screens in movie theaters, and a sharper picture. What causes this perk is the fact that digital signals have a higher bit rate. This allows for more bits to be transmitted into the TV (cable, antenna, or satellite). The more bits a TV can transmit, the better the picture or screen resolution. The digital TV signal can carry as many as 19.4 megabits of data, which means a broadcaster can mix multiple programs of varying bit sizes onto a single channel. Say you’re watching a football game, since one camera view only uses up so many bits, you can select a different came .....

.... ability to prevent air pollution. Air pollution is the presence in the atmosphere of harmful gases, liquids, or solids. Air pollution, known as smoke pollution for many years, resulted from coal combustion (Hodges 526). Smog has been a problem in coal-burning areas for several centuries. Smog finally decreased when coal combustion was replaced by oil and gas combustion. Air pollution is caused by a number of different types of pollutants. The first type, particulate matter, consists of solid and liquid aerosols suspended in the atmosphere. These arise from the burning of coal and from industrial processes. Atmospheric particles can scatter and absorb sunligh .....

.... stranded, negative-sense of RNA viruses. Ebola is the deadliest virus known to man, and spreads in a breath of air. The symptoms of this deadly virus starts with sudden fevers, weakness, muscle pain, extreme headaches, and soar throats. These symptoms begin four-sixteen days after infection. After about 2 days of these symptoms you start to "crash". A crash is when you vomit uncontrollably until there is nothing left to vomit (you vomit blood, bile and other liquids of the body), you suffer from diarrhea, limited kidney function, internal and external bleeding, you bleed from every opening on your body, blood fails to clot, so if you get cut in any way your bo .....

.... are not associated with heart disease are referred to as innocent murmurs. Most children diagnosed with a heart murmur have innocent murmurs. There are several different types of innocent murmurs. In the newborn and infancy period, a common innocent murmur heard is called pulmonary flow murmur. This is caused by the flow of blood through the pulmonary artery, which takes blood to the lungs. The arteries are still slightly narrow, and, therefore, blood flow through them will cause a murmur. As the baby grows, the murmur will become softer and many times disappear altogether. Another common innocent murmur heard in children ages 3 to 8 years is a vibratory musi .....

.... likely to be caused by allergies. Non-allergic asthma is called intrinsic asthma. The frequency and the extreme in which asthma symptoms occur vary from one person to another. Most attacks occur at night, beginning with coughing or wheezing and shortness of breath, but in some people a dry cough may be the only symptom. This may be partially due to the fact that you stay in your room sleeping for eight hours at a time. Dust mites collect in your bedding, curtains, pillows and rugs. To avoid this, you should have your mattress and pillows sealed in a plastic covering, no curtains and you should have hard wood floors in your bedroom, instead of rugs or ca .....

.... other fossil teeth and bones were found near Oxford, England, by Rev. William Buckland. These were named Megalosaurus. Thousands of specimens have since been discovered nearly worldwide. Different types of dinosaurs varied greatly in form and size, and they were adapted for diverse habitats. Their means of survival can only be identified from their fossil remains, and some identifications are in dispute. They ranged in weight from 4 to 6 lb., in the case of the compsognathus, and up to 160,000 lb., in the case of the brachiosaurus. Most dinosaurs were large, weighing more than 1,100 lb., and few weighed less than 100 lb. Most were herbivores, but som .....