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What is a control group?

A group that changes the variable
The group that applies the variable
The group that tests the variable
A test group where the variable is not changed or applied Which of the following objects is transforming electrical energy into energy of motion?

Sagot :

Answer:

The group that tests the variable.

Explanation:

The group that tests the variable is a control group.

Answer:

C when testing the group put the varible in control