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Controls are defined as ___.
A) variables scientists observe for changes
B) things that change during an experiment
C) variables that are changed by the scientist
D) things that are kept constant during an experiment

Respuesta :

hamzaafzal012

Answer:

things that are kept constant during an experiment

Explanation:

A controlled variable is a variable that could change, but that the experimenter intentionally keeps constant in order to more clearly isolate the relationship between the independent variable and the dependent variable

Answer:

D!!!!!

Explanation:

i hope dis is right!!!! :D

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