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The letters "DDT" stand for dichloro-diphenyl-trichloro-ethane. ... So, for every molecule of DDT, there are 14 carbon atoms, 9 hydrogen atoms, and 5 chlorine atoms.
DDT the first of the chlorinated organic insecticides, was originally prepared in 1873, but it was not until 1939 that Paul Muller of Geigy Pharmaceutical in Switzerland discovered the effectiveness of DDT as an insecticide he was awarded the Nobel Prize in medicine and physiology in 1948 for this discovery.
The use of DDT increased enormously on a worldwide basis after World War II, primarily because of its effectiveness against the mosquito that spreads malaria and lice that carry typhus. ... DDT seemed to be the ideal insecticideit is cheap and of relatively low toxicity to mammals.
Approximate Word count = 572
Approximate Pages = 2.3
(250 words per page double spaced)
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