Chemistry, 28.01.2021 16:10 rainyfallaw
What is the function of a control group in an experiment?
A. It is the group that always changes
B. To check the validity of an experiment
C. To test on the hypothesis of an experiment
D. It is the group that never changes
Answers: 3
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You know the right answer?
What is the function of a control group in an experiment?
A. It is the group that always changes
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