A student constructs several terrariums to grow plants.
Each terrarium is exposed to a different amount of
sunlight each day. In order to determine the ideal
amount of sunlight, which of the following variables
must be held constant?
A. growth rate
B. amount of sunlight received
C. type of plant
Answers: 1
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A student constructs several terrariums to grow plants.
Each terrarium is exposed to a different a...
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