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Valentin [98]
3 years ago
9

A scientist is doing an experiment. She wants to find which of the following

Biology
1 answer:
Assoli18 [71]3 years ago
3 0

<u>ANSWER:</u>

She should use untreated sewage waste as the control group for this experiment.

<u>EXPLANATION:</u>

  • In any experiment, a control group is the independent or isolated group that cannot affect the "outcome of an experiment".
  • In this experiment, untreated sewage waste is the control group because untreated sewage wastage cannot affect the outcome of the experiment.
  • The sewage waste is being treated with a chemical, bacteria X and bacteria Y all of which will have an impact on the result of the experiment.
  • Only untreated sewage waste will not impact the outcome of the experiment.
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