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The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?
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Madison lives near the ocean. sheβs formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable:
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Non-metals are generally non-conductors of electricity. graphite is a non-metal but used as electrod...
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