James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air conditioned rooms. He then measured
the growth of the pea plants after a week. In this experiment sunlight is a(n) ____.
Aindependent variable
BConstant
CDependent variable
DControl
the growth of the pea plants after a week. In this experiment sunlight is a(n) ____.
Aindependent variable
BConstant
CDependent variable
DControl