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Kipish [7]
3 years ago
10

Control groups are used in scientific experiments because they

SAT
1 answer:
aliya0001 [1]3 years ago
4 0

Answer:

C

Explanation:

It prevents other variables such as independent variables and extraneous variables from affecting the validity of results. It also makes it easier to compare results when variables are changed.

Hope this helps :)

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