The control variable is the one that is kept same in the test an throughout the test
Step-by-step explanation:
The scientific constant that is kept constant throughout the experiment is not changed and the value remains constant throughout the experiment and they have strong influence in the results
To test the relationship between the dependent and the independent variables determination of the control variable is necessary and the resulting value changes if the control variables are not kept constant throughout the experiment
This will also bring about the co relationship between dependent variable and the independent variable