How are element symbol determined?

How is natural gas transported to users without any pipeline? Why might the venus flaytrap not thrive in a cold cloudy climate? How do they move the shoulder joint in all the direction? How may pounds does 69 gallons of water weigh? What are uses of apatite the mineral? Is iron turned into rust a physical or chemical change? What is the name of the protective insulation that surrounds parts of neurons and speeds the transmission of electrical impulses along brain cells? How does one of Newton's Laws of Motion explain what seems like a contradiction? What happens if Na2CO3.10H2o is left open in air? A chemical reaction in which the substrates trade constituent parts? Which of the following types of organisms break down dead plant and animal matter and return carbon dioxide to the atmosphere? How are cactus plants adapted to survive in hot climates? What is save the Moon for Kerdy Dickus? What kind of workers is not an example of a tradesperson? What happens to the density and pressure as you rise up through the layers of the atmosphere? What is one disadvantage of using natural gas as fuel? What happens if a person has defective carrier proteins for a given substance? What are adaptations of daphnia? What group contains an element that is a liquid at room temperature? What structure contains the seeds of an anthophyte?