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Which combination of variables will make an experiment the most reliable? A. Once controlled variable and many experimental variables. B. Two controlled variables C. Two experimental Variables D. One dependent variable and one experimental variable

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Answer:

D. One dependent variable and one experimental variable

Explanation:

The experimental variable is defined as an independent variable which can be manipulated during an experiment in order to find out its impact or influence on the dependent variable.

The dependent variable refers to a variable that changes when an experimental or  independent variable is manipulated.

Every experiment must have at least one experimental variable and one dependent variable in order to yield any meaningful result.

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