Athylen is colorless rain toxicity flammable gas that have sweetish fragrance and taste, stored by liquid gas in 21.1? (40kg/?) state. Athylen lowering oxygen density while wait for an opportunity cause breath obstacle or except combustibility special quality gas that is not dangerous be . Oxygen and Athylen that mix must not exceed 5500ppm that workroom air is combustibility threshold number 20% in case use by anesthetic. There are five major types of plant hormones: auxin, cytokinins, gibberellins, abscisic acid and ethylene. Each hormone can interact with the other causes various result in...