User Posts: sadam
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Some people chew the tobacco while other use it in cigarettes. Tobacco smoke consists of many chemical substances. Nicotine tar and carbon monoxide are the ...

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The real duties of the effective modem teacher are much broader and much more complicated than the average layman believes. Far too many individuals still ...

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Tetanus Tetanus is an acute disease. Their germs remain alive in the dust, faces of the man and animals. If a person is injured in a roadside accident, ...

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Linton has proposed that all elements of culture can be classified into three principal categories. A) The universal B) The specialties C) The ...

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Radioactive_(of such metals as radium or uranium) having atoms that break up, and in so doing, send out rays in the form of electrically charged particles ...

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The use of energy in factories, transport, offices, educational institutions and homes is so large that fuel reserves such as coal, oil and gas are exhausting ...

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Very small quantities of carbon are found in the earth’s crust as the free element. It is present in approximately one million known compounds. One of the ...

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