A Control Experiment Is One

question 34

Multiple Choice

A control experiment is one

• A)that is repeated at least three times.
• B)in which most of the variables are tightly controlled so that the effect of changing one variable can be determined.
• C)that is tightly sealed and not exposed to oxygen so that the effect of oxygen on the experimental variables can be determined.
• D)that produces an "xy" plot.

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