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Read the hypotheses below, then answer the questions.
A student wonders if adding fertilizer to the soil will make tulips grow faster. The studentās hypothesis states, āIf fertilizer is added to the soil, then the tulips will grow faster, because fertilizer adds nutrients to the soil.ā Which of the following variables is the independent variable?
the type of soil the tulips receive ā with or without fertilizer
the time it takes the tulips to grow
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Answers: 3
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