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Detailed explanation-1: -A control variable (or scientific constant) in scientific experimentation is an experimental element which is constant (controlled) and unchanged throughout the course of the investigation.

Detailed explanation-2: -When conducting an experiment, a control is an element that remains unchanged or unaffected by other variables. It’s used as a benchmark or a point of comparison against which other test results are measured. Controls are typically used in science experiments, business research, cosmetic testing and medication testing.

Detailed explanation-3: -Constant-The factors that do not change during the experiment. Control-The control is the group that serves as a standard of comparison. It is exposed to the same conditions as the experimental group, except for the variable being tested.

Detailed explanation-4: -The control variable remains constant throughout an experiment. The independent variable is manipulated during an experiment to hopefully produce the change on the dependent variable in the experiment.

Detailed explanation-5: -A constant variable, sometimes known as a control variable, is something you keep the same during an experiment.