arsenic
arsenic
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11.
by Patti Wilson - 2007-06-04
Reverse Osmosis is actually a simple process. Reverse Osmosis is a process that forces water, by the application of pressure, to pass through a semi-permeable membrance that rejects heavy meta...
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12.
by Dr.Badruddin Khan - 2008-08-24
Syphilis, once responsible for devastating epidemics, is caused by the bacterium Treponema pallidum that is very fragile, and the infection is almost always transmitted by sexual contact with an infe...
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13.
by Dr.Badruddin Khan - 2008-08-26
Most poisons taken in sufficient quantity are lethal. A poisonous substance may originate as a mineral, vegetable, or an animal and it may assume the form of a solid, liquid, or gas. A poison, depend...