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Hakeem is testing the effects of sunlight on samples of soil. Which of these actions would introduce confounding variables into Hakeem’s experiment?
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Hakeem is testing the effects of sunlight on samples of soil. Which of these actions would introduce confounding variables into Hakeem’s experiment?

User Adnrw
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Answer:

he tests multiple hypotheses at a time // he uses different types of soil in each of his samples

Explanation: took the quiz

User Darkheartfelt
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