The role of a control in an experiment is to
A. provide a basis of comparison to the experimental group.
B. prove that a hypothesis is correct.
C. ensure repeatability.
D. counteract the negative effect of the experiment.
Answer:A
The role of a control in an experiment is to
A. provide a basis of comparison to the experimental group. B. prove that a hypothesis is correct. C. ensure repeatability. D. counteract the negative effect of the experiment.