Controlling variable are environmental events following a particular behavior that influence its future occurrence.
Controlling variable are the environmental events that are held constant during an experiment. It is also known as constant variable. It is important because it effects the end result of an experiment but it is neither the dependent or independent variable.
In an experiment it is important to control the constant variables to work out the experiment successfully.
Controlling variable can be any environmental events like temperature, pressure, etc.
Lack of awareness of these variables can cause the results to be faulty.
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