Alarge greenhouse has developed a new plant. they are interested in how the plant grows under different conditions. your task is to design an experiment to test the plant growth taking into consideration 2 brands of fertilizer (easygro and supergro), 3 levels of soil acidity (high, moderate, and low), and location (indoors or outdoors). there are 120 plants available for the experiment.

By water evaporation from the leaves is created a negative pressure at the top of the tree that promotes the ascension  of the water through channels that are called xylem. there are also two molecule forces that are involved: the intra-water molecules cohesion (water molecules stick to each other) and the adhesion when the water molecules stick to the channels they are running in. this is what enables water to go from the roots to the top of a tall tree.