Which experimental procedure would provide the best evidence for the effect of light on plant growth a plant seeds and different soils and expose them to different amounts of light, then measure plant growth B measure plants of the same variety grown in environments that receive different amounts of light C measure plants receiving different amounts of light in their natural environments d plant seeds on the same variety in the same conditions and very only the amount of light then measure plant growth

B) Measure plants of the same variety grown in environments that receive different amounts of light.

This experimental procedure would provide the best evidence for the effect of light on plant growth because it directly compares plants of the same variety in different light conditions. By keeping all other variables constant (such as the type of soil, temperature, and water), any differences in plant growth can be attributed primarily to the varying amounts of light received.