Gunpowder, in some ways the most effective of all explosive materials, were mixture of potassium nitrate, charcoal, and sulfur.

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• Before  she moved , Arlane had been the president of the organization since four years

• Mary found it hard to concentrate on her work because noise

• Woody Guthrie wrote thousands songs during the lifetime, many of which became classic folk songs

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• The officials object to them wearing long dresses for the inaugural dance at country club.

• Abigail Adam’s letters to her husband pre a graphic picture of the age which she lived.

• Even the most discriminating gourmet will agree that food in the south is as good as any other regions in country.

• I’ve got my photos drying out on the kitchen floor, so whatever you do, don’t tread on them!

• A calorie is the quantity of heat required to rise gallon of water one degree centigrade at one atmospheric pressure.

• I _____ the film last night because I _____ it several times before.

• Manyamny Civil War battles were fought in Virginia than in other state.

• In that age of computers, it is difficult to imagine how tedious work of accountants and clerks must have been in the past.

• In Sociology of Science, now considered classic, Robert Morton discusses cultural, economy and social forces that contributed to the development of modern science.

• I put my new book of zoology here on the desk few minutes ago, but I cannot seem to find it.

• To those who favorite free trade, revival of barter can suggest nothing less than a disaster.

• Van Cliburn he studied the piano from 1951 to 1954 and won multiple awards between 1958, 1960.

• Need for a well-rounded education was an idea espoused by the Greeks in time of Socrates

• Until recently , women were forbiddenlaw owning property.

• With its strong claws and many protruding tooth, a gopher is excellent digger.

• Conservation organizations help for to preserve the ecology of an area by keeping track of endangered species.

• New uses for plastics were found during the 1950’s and 1960’s in medicine, space, research, industrial, and architecture