Blue light = growth Green light = nothing Blue & Red = Flowering There are more but for now I lost the test results this was all I could remember.
Not for most plants.
Yes, it does. If the plant is in the water for 1 week then the color of the plant will change to the color of the water.
A Orange is like very high in calcium and has lot's of Antioxedents. And that could make the plant dry out and die.
Maybe there are some nutrients in the root beer that are beneficial to the plant. Frequent watering with root beer may not help the plant because the root beer maybe to acid for the plant.