.... more of a reality, with the eventual possibility of death. Stratospheric ozone has been used for several decades as a tracer for stratospheric circulation. Initial measurements were made by ozonesondes attached to high altitude balloons, by chemical-sondes or optical devices, which measured ozone concentrations through the depletion of UV light. However, the need to measure ozone concentrations from the surface at regular intervals, led to the development of the Dobson spectrophotometer in the 1960s. The British Antarctic Survey has the responsibility to routinely monitor stratospheric ozone levels over the Antarctic stations at Halley B .....

.... Defence Council, “pesticide exposure to adverse health effects including cancer, birth defects, reproductive harm, neurological and development toxicity, immunotoxicity, and disruption of the endocrine system.� Children are more likely to be affected by pesticides than adults because, they are strange eaters, they breath at a higher rate, and tend to spend more time on the ground were chemicals may settle and then enter a child’s body through breathing, orally, by touching something with a residue and then putting their fingers in their mouth, and through a child’s skin. Pesticides will drastically damage the future health .....

.... lost school days, lost workdays, and professional care for depression. Tens of thousands of people out of the 15 million attempts to commit suicide because of depression and about 16,000 of those people succeed. Depression loosely defined is a disorder marked by a state of deep and pervasive sadness, dejection and hopelessness, accompanied by feeling of fatigue apathy, and low self-worth (Bourne and Russo 1998 p. A-24). Though that seems like a very comprehensive definition it is characterized by many different symptoms to combine to one effect on the psyche. Depression itself is not only widespread but also associated with ma .....

.... different brands of plant food on plants to see what brand of plant food makes the plant grow the tallest. I will test three types of plant food on three sets of plants and one set with no food. I will water the plants all the same amount and let all the plants get the same amount of sun, then measure the height of all the plants at the end of six weeks and record the data. The first step of photosynthesis is the absorption of light by a chlorophyll molecule. "The energy of the absorbed photon is transferred from one chlorophyll molecule to another until it reaches a site called a reaction center....One oxygen molecule is produced per .....

.... in the pancreas, to move glucose from the blood into the body's billions of cells. But people who have either don't produce insulin or can't efficiently use the insulin they produce. Without insulin, they can't move glucose into the cells. Glucose accumulates in the blood, a condition called hyperglycemia ("hyper" = too much, "glycemia" = glucose in the blood). Hyperglycemia causes intense thirst, the need to urinate frequently, blurred vision, fatigue, and other symptoms. Over time, high blood glucose can cause very serious medical problems. Adding up the total toll of complications, the disease is one of the nation's leading causes of d .....

.... determine the traits and characteristics of animals and plants. Every trait has one or more gene associated with it. Thus, natural selection provides the animals and plants with the best genes. Supporters of neo-Darwinism believe that natural selection operating upon random variation gave rise rise to all animals and plants. While the source of variation is random, the direction of evolution is not. In effect, natural selection removes chance, and it makes the theory of evolution plausible. If neo-Darwinism is correct then numerous small successive changes guided by natural selection gave rise to all animals and plants. .....

.... 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 muscle aches. These diseases usually progress until the patient becomes very ill with respiratory problems, severe bleeding, kidney malfunctions, and shock. The conclusions of the viral hemorrhagic fever can range from a mild illness t .....

.... a state of high agitation that in some individuals can lead to violent behavior. Contrary to the stereotype of rural areas as idyllic, protected environments in which to raise families, substance abuse is as great a problem as it is in the cities. One must realize that rural communities vary in characteristics considerably, which complicates our understanding of rural substance use problems and increases the need for prevention, intervention, and treatment programs. For too long, the problems of alcohol and drug abuse in rural areas have received little attention from the federal level. As national studies show, those who live in ru .....

.... Fiber optics can be seen in telephone systems, in the military, in cars, in medicine, and in many other fields of study. For all industries and professions, "Fiber optics allow huge amounts of voice, data and video imagery to be transmitted instantaneously, allowing for photographic-quality images, interactive video conferencing and other business multimedia uses" (Inman News Features 1). It's becoming possible to transmit audio, video and data signals over great distances using these fibers of pure glass or plastic. Today, fiber optic technology has almost become a necessity in everyday business. Because fiber optics can simultaneously t .....

.... incident is a very sketchy ordeal in which many people have different accounts. There is and was never any doubt that something crash landed. On July 8, 1947 the headline of the Roswell Daily Record read "RAAF Captures Flying Saucer on Ranch in Roswell Region." The next day, the headlines read "Weather balloon was mistaken as UFO." Many people wonder how someone with military experience could mistake a weather balloon for a UFO, which is why they are inclined to believe the first military report. From this point on, many people were suspicious of the United States Government because the facts were being withheld from the public at th .....