A scientist sets up an experiment to see how colored lights affect the height of plant growth. He grows one group of plants in f
ull sunlight, one group under red lights, one group under blue lights, and one group under green lights. All the plants are exactly that same type and all receive an equal intensity of life. At the end of the experiment he measures all the plants. What is the independent variable?
Divergent plate boundaries because the separating of the tectonic plates allows for the lava to push its way through the rift and escape to Earth's surface.