The variable that is changed in controlled experiment is called a
a. dependent variable
b. independent variable
c. control variable
d. experimental variable
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Option a and b
Explanation:
Independent and dependent variables
The factor that is different between the control and experimental groups (in this case, the amount of water) is known as the independent variable. ... In contrast, the dependent variable in an experiment is the response that's measured to see if the treatment had an effect.
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