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When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ variable. A. observational B. environmental C. experimental D. control
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When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ variable.

A. observational
B. environmental
C. experimental
D. control

User Wmarbut
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2 Answers

5 votes
The answer is D. control
User Marc Ruef
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3 votes
The answer to your blank in the sentence is experimental. Which is C
User Jon Onstott
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