Essay Database

… Island of Martinique had been living in the shadow of their volcano for more than two centuries and it had never harmed them. By 1902 they had begun to regard it as a peaceful dragon sleeping away the eons in their backyard….There was nothing…

… the two major types of Volcanoes, andestic and basaltic, the two typical volcanoes begin life when a mass of low-density magma forces its way to the surface. When the density of the rising magma is the same as that of the surrounding rock, it gathers…

… body within a network of blood vessels. When our tissues are injured (cut on skin), are blood vessel is disrupted, and we bleed through the holes in the blood vessel wall. Normally, we stop bleeding through two integrated processes, or the formation…

… because it's needed for survival and there is no substitute for it. Unlike energy, which has many alternative forms there are no alternatives for water. Most of our earth is covered by water, but only a tiny amount is available for fresh water.…

… you take medicine without your knowledge or consent? saying that this medicine would be benficial without a noticfiction as to what it was, and background information on it. How would you feel if politicians in your city have been adding a corrosive…

… by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary phosph…

… chemicals, industrial and other wast, or sewage. These harmful materials deterioate the quality of water. Nottable effects of water pollution is when it involes human health. Nitrates in drinking water can cuase disease in infants that sometimes…

… pollution. For example, take a look at a glass of water. It may appear clear, but there are really millions of microscopic pollutants floating in it. Approximately 70% of the earth's surface are covered by water; water is a very dynamic system,…

… lot of environmental problems today; these problems are caused by humans. In the search for the technology, humans begin to improve their lives without giving attention to what this development has caused to the other types of life on the face…

… types of water treatment devices currently being used by countries, cities, and even for personal use. Some of the devices that will be analysed are: I’m running out of creativity. Chemical Disinfection In Canada, the most common method of disinf…