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Which is the safest practice when heating the contents of a test tube over a flame?
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Are substances released into the environment that in excess amounts cause damage
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Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels
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Which is the safest practice when heating the contents of a test tube over a flame?...
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