... us. This is caused mainly by the destruction of habitats. This dramatically increases the rate at which species decrease in number and become extinct. It is appalling to know that we are the main cause of this. Over fishing, pollution, over cutting, and an increase in population contribute to this problem. An example of this is the gold mining operation that we saw in the video. While mining, Mercury was dripping into the water. The mercury then got into the fish and into the humans who ate the fish. Biodiversity promotes a healthy environment. Environments rich in biodiversity are stronger and can with stand things such as drought, disease, and other ...

... rainfall decreases would occur over wide areas of the middle Northern Hemisphere. Smaller temperature decreases might occur in low latitudes but more importantly in these regions rainfall would probably decreases because monsoons could not develop. Like in On The Beach, all the radiation move towards Australia and everyone innocent people died. A large-scale nuclear war would lessen food production over large expanses in the Northern Hemisphere, this could occur through acute climatic conditions which chilling or freezing temperatures occurring for brief periods during the growing season which could destroy crops or lower production. As result of the varie ...

... and beliefs. I have learned things that have now been incorporated into my own set of beliefs and values. I greatly value freedom of thought, friends and family. My emotional self deals with feelings and my ability to handle the demands of life. The spiritual self is all about my beliefs, values, religion and my life philosophies. By satisfying the needs of all five selves, the result can be holistic wellness which is the ability to feel good about myself and others. Physical fitness is having ample energy and the ability to perform daily activities without being exhausted. My energy usually depends on the amount of sleep and food I get. If I have too much or too ...

... effects because of the huge changes it causes to river circulation system. Some 40,000 large dams, most of which were built in the past 50 years, now obstruct the world's rivers. More than 400,000 square kilometers--an area larger than Zimbabwe, and 13 times the size of Lesotho. Volta Reservoir behind Ghana's Akasombo Dam, flooded 4% of that nation's land area. In the United States, whose 5,500 large dams make it the second most dammed country in the world, we have stopped building large dams, and are now spending great amounts of money trying to fix the problems created by existing dams. Although the impacts of large dams have been well documented for ...

... to truly understand evolution in its fullest context, one must not look to a dictionary, for dictionary definitions just are too vague. One of the most respected evolutionary biologists has defined biological evolution as follows: "In the broadest sense, evolution is merely change, and so is all-pervasive; galaxies, languages, and political systems all evolve. Biological evolution ... is change in the properties of populations of organisms that transcend the lifetime of a single individual. The ontogeny of an individual is not considered evolution; individual organisms do not evolve. The changes in populations that are considered evolutionary are those that a ...

... a long time. Aristotle thought that was a kind of sulfur. The Latin word um means yellow orpiment (a pigment containing and sulfur). While knowledge of dates back to ancient Greece, it wasn't until the Middle Ages that its poisonous characteristics were described. It was identified by Albert Magnus about 1250, and he described the way to manufacture it. Since then the method has scarcely changed: the mineral arsenopyrite is heated and decomposes with the liberation of gas. The gas can be condensed on a cold surface. Metallic was first produced in the 17th century by heating with potash and soap. General Properties is very similar to antimony and bismuth. ...

... that Aristotle said, "All men by nature desire to know." One day, a promising physics student walks into a professor's office wanting to find out what physics could teach him. This student, only having a rudimentary knowledge of physics, asks, "Can you give me a definition of physics?" The sage rolls his eyes back, and rubs his temples. He replies, "Big or small?" The student baffled by this, prompts again, "Um, physics?" The teacher noticing the ignorance in the room explains, "Physics is split into two major fields: Relativity (Einstein) and Quantum. Thus, they explain big forces in nature and small forces in nature, respectively. They are not cross- ...

... with application of just a small amount of pressure, and they could easily then be turned back into gas. CFCs were completely inert and not poisonous to humans. They became ideal solvents for industrial solutions and hospital sterilants. Another use found for them was to blow liquid plastic into various kinds of foams. In the 1930's, household insecticides were bulky and hard to use, so CFCs were created because they could be kept in liquid form and in an only slightly pressurized can. Thus, in 1947, the spray can was born, selling millions of cans each year. Insecticides were only the first application for CFC spray cans. They soon employed a number ...

... spreads through other muscle groups closer to the brain. Such early symptoms as this, however, can hardly be noticed. Early symptoms of are very slight and often overlooked. They begin as simple things, such as tripping or dropping things. Twitching or cramping of muscles and abnormal fatigue of the arms and legs may soon follow, causing difficulty in daily activities, such as walking or dressing. In more advanced stages, however, shortness of breath or difficulty in breathing and swallowing ensue, until the body is completely taken over by the disease. Intellect, eye motion, bladder function, and sensation are the only abilities spared. Where and ho ...

... beings may have evolved from ape-like creatures. Even with this, there are still disputes in the paleoanthropological field of whether or not this is true. Still, many choose to believe their religious creation stories where a God created humans. Whether it is Johanson's idea on human evolution or Leakey's or even the Roman Catholic's creation story, all are an individual own interpretation and neither wrong nor right. A paleanthropologist by the name of Donald Johanson is one of the many who have a very different view on the origin of humans. In 1974, he discovered forty percent of an individual dating back to 3.5 million years ago. The individual, Australopith ...