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Author Question: Which gas is poisonous? A) Carbon dioxide (CO2 ) B) Ozone C) Carbon monoxide (CO) D) Unburned ... (Read 210 times) |
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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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There are more bacteria in your mouth than there are people in the world.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.