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During the Industrial Revolution coal and other fossil fuels were used as a source of energy. They were burned and the gas given off was harmful to the atmosphere. Unknowingly factories burned fossil fuel causing what we call the greenhouse effect. Unfortunately, factories continue to burn these fuels.
also causes acid rain. Acid rain is caused by oxides of sulfur, carbon, and nitrogen from burning fossil fuels combine with moisture in the air. In 1981 alone, 264 million tons of waste was produced in the United States, 5.5 million tons of it was considered hazardous. Five years later the United States generated 1,770,000 cubic feet of solid and liquid radioactive waste.
has been known to cause ecological imbalances. DDT was used as an insecticide up until 1972. It almost wiped out the Bald Eagle population. It caused the birds to lay eggs so thin shelled eggs the eggs were unhatchable. Laws banned the use of DDT and also required the reduction of lead in gas. DDT is still used in developing countries on the malaria-carrying mosquito. Oil spills also have harmful effects, luckily chemicals can neutralize the oil before massive damage occurs. In 1983 the Dow Chemical Company's factory, a major producer of chemicals, showed contamination from dioxin. Dow undertook a 3 million dollar study of the material. The company announced that Dioxin is less health and life threatening.
High-temperatures are used to reduce the toxicity of waste. These processes use plasma technology to make the waste more environmentally friendly. Plasma treatment reach temperatures up to 1,650o F. In the United States incineration is a primary way to get rid of liquid waste. This process eliminates waste in two stages. One is partially burning the waste with insufficient air and then they ...
It is the immediate effect of on urban atmospheres that is most noticeable and causes the strongest public reaction. The city of Los Angeles has been noted for both the extent of its and the actions undertaken for control. Los Angeles lies in a coastal plain, surrounded by mountains that restrict the inward sweep of air and that separate a dese...
PROJECTILE MOTION * The motion of the body thrown horizontally or an angle other than 90[0] with the horizontal component * Trajectory is the path that a projectile follows * Parabola is the trajectory of a projectile * Two components of projectile motion: Vertical component- air resistance is neglected; a projectile moves horizontally at const...
Presentaci'N Pensamiento Cr'Tico - Presentation Transcript 1. Relaci'n entre Pensamiento Cr'tico y Creativo Marianela Conejeros 2. Pensamiento Cr'tico y Creatividad o El concepto de creatividad tiene como referente buscar, probar, combinar, innovar, explorar, en este contexto se vincula necesariamente con el pensamiento cr'tico , ya que este 'l...
In order to assess the one must first take an overview of the whole of the whole disease. One must understand the disease and its enormity on a global basis. Malaria is a protozoan disease of which over 150 million cases are reported per annum. In tropical Africa alone more than 1 million children under the age of fourteen die each year from Malar...
has the symbol No and is a radioactive metallic element with an atomic number of 102. is in the actinide series being labeled as one of the transuranium elements. The element is named after Alfred Bernhard Nobel, the Swedish inventor and philanthropist. can be found when produced artificially in a laboratory. Discovery of the element was first...
