Question

this experiment was set up to test the hypothesis that plants grow faster in green light. what is the independent variable in the experiment
amount of water
type of plant
color of light
size of pot

Explanation:

The independent variable is the factor that is manipulated in an experiment. Here, the experiment tests how plant growth is affected by light color, so the color of light is the manipulated variable (independent variable). Other options like amount of water, type of plant, or size of pot are either controlled or not the focus of manipulation here.

Answer:

Color of light