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Chemistry, 21.02.2020 01:28 TrueKing184

Nancy uses one 9-volt battery in each circuit. She uses the same amount and type of wire in each circuit. She also uses the same type of light bulbs in each circuit.
Which of the following is a control in Nancy's experiment?

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Nancy uses one 9-volt battery in each circuit. She uses the same amount and type of wire in each cir...
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