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andreyandreev [35.5K]
3 years ago
5

Why is it important to have a control group in an experimental investigation?

Chemistry
2 answers:
Alika [10]3 years ago
8 0

Answer:

Its C pn ed

Explanation:

Karolina [17]3 years ago
3 0
To compare the results when the independent variable is not involved
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