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 most important chemical substances. Nicotine is a very poisonous ...
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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 think that the teacher works only between the hours ...
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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, these germs enter the wound and ...
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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 alternatives A) The Universals The universals comprise those values, beliefs and ...
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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 capable of penetrating (going deep into) opaque (not ...
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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 very rapidly. Non conventional resources of energy are ...
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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 unique properties of carbon is that its ...
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