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Question

This is for Physics I.

The invention of the light bulb is an example of....

pure science, an independent variable, a control group, or applied science

Answer 1

It is clearly applied science.

We can eliminate pure science, which might be illustrated by discovery of a new element for the periodic table or the articulation of the theory of general relativity.

Independent variable is a mathematical term.

Control group is ordinarily used in statistical experiments.

I hope that this answer is of help to you.