.... the black hole. It will describe how a black hole is generally formed, how it functions, and the effects it has on the universe. In order to understand what exactly a black hole is, we must first take a look at the basis for the cause of a black hole. All black holes are formed from the gravitational collapse of a star, usually having a great, massive, core. A star is created when huge, gigantic, gas clouds bind together due to attractive forces and form a hot core, combined from all the energy of the two gas clouds. This energy produced is so great when it first collides, that a nuclear reaction occurs and the gases within the star start to burn cont .....

.... well as the lungs or gills of the early tetrapod fossils. This information is critical in understanding the history and the process of growth and change. It aids in learning about human evolution. Tetrapods are creatures with four limbs, hips, shoulders, fingers, and toes, which developed sometime after lobe-finned fish, and before the first fully terrestrial vertebrates. The earliest tetrapod known is Acanthostega. It is also considered the most primitive tetrapod. It is very close to its fish ancestry, but still anatomically far from its terrestrial relatives. These creatures still lived in water, but they had a lot of the terrestrial tetrapod anatomical cha .....

.... wings or fuselage. Fuel is considered a chemical energy. This diagram shows how the jet engine acts as energy to lift the aircraft off the surface of earth. Fuel can take the form of gases, solids or liquids. When fuels combine with oxygen from the air, they release their stored energy as heat. We recognize this process as burning. The individual relies on food for fuel which contains energy-giving substances that our bodies can store until we need this energy to use our muscles. When we do use our muscles within us, we may not always be sure that heat is given off. Our bodies do not burst into flames but the perspiration on our skin is a clue to what i .....

.... been growing ever since. The severity of its effects has long been recognized in local settings, exemplified by the spells of acid smog in heavily industrialized areas. The widespread destructiveness of acid rain, however, has become evident only in recent decades. One large area that has been studied extensively is northern Europe. In 1984, for example, environmental reports indicated that almost half the trees in Germany’s Black Forest had been damaged by acid rain. This form of pollution has also particularly affected the northeastern United States and eastern Canada. Industrial emissions have been blamed as the major cause of acid rain. Because the chemic .....

.... of the strongest reasons to support that cloning is worthwhile to humanity is that it there would be a solution to organ limitation. One of the greatest problems in medicine today is that there has not been enough organs to go around to all of the patients that are in need of them. This in turn creates a lot of unnecessary deaths, and problems for patients. Currently in the U.S. only 2,300 of 40,000 Americans who needed a new heart received one. That means close to 94% of the patients did not receive one and this is only one organ in one country that were talking about. Statistics show that nearly one third of the patients on the waiting list for o .....

.... so is used for making statues. It also has a unique sound when struck, which makes it ideal for making bells. Bronze resists corrosion, but weathers to a beautiful brown or green colour. Copper is also used for locks, pipes, plumbing fixtures, door knobs, drawer handles, lamps, pots, pans roofing, and jewellery. Certain chemical compounds of copper can be used to help improve soil, and destroy harmful insects. Copper can also be used to help protect other materials against corrosion, and in small amounts is vital to all plant and animal life. The properties that make copper extremely useful include - Conductivity - Silver is the only better conductor, but .....

.... finger that hold the cigarette. These effects may not sound too harmful as they are cosmetic in nature and are only on the outside but these can inhibit one in subtle ways. There are many people who do not like smoker be it because of the smell the smoke or because of the stereotype that smokers are "bad". But these outside effects are instantly noticeable and people can react badly to you and thus make immediate bad impressions on people that you need to make a good impression on. Be it with a teacher, someone who is interviewing you for a job, or simply someone you are trying to get romanticly involved with. Then there are the more harmful and insidious .....

.... with the highly proven safety of nuclear power, there is still fear from citizens and the chance of an accident. The nuclear power industry uses misleading language, and words understood by nuclear employees only, or euphemisms and jargon, to mislead the public and make them believe that there is nothing to be afraid of and that there is no possibility of a major accident. They take the public's biggest fears, meltdowns and contaminations, and make them into "events" and "infiltrations." This use of doublespeak is misleading to the public and may make them believe that a major accident hasn't happened, or the accident was a normal event or min .....