Students are conducting an experiment to determine if the amount of sunlight affects the size of clover leaves. They plant clover in two identical pots, placing one next to a window and one inside a cupboard. They water each pot daily with 10 mL of water. Which is the independent variable?
(1 point)
A. the kind of pot the plants are in
B. the amount of light the plants receive
C. the size of the plants leaves
D. the volume of water the plants receive