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The half-life of a radio-active element is 8 years. If we start with 20 grams, how much is left after 16 years? 20 years?
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Which of the following correctly describes the early view of catastrophism?
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The slope of a velocity time graph over any interval of time gives the during that interval
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Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?
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One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form
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The half-life of a radio-active element is 8 years. If we start with 20 grams, how much is left afte...
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