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3 years ago

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You have decided to study the effect of loud noise on plant growth. You put one plant in a quiet room and the other plant in you

r school's band hall. Providing each plant with the same amount of water is an example of a
A. data.
B. control.
C. variable.
D. observation.

1 answer:

Aleksandr [31]3 years ago

7 0

B. control

also known as constant

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