What is a global positioning system GPS and how does it track earths surface?

Who stated that the universe is still expanding? What is a Theme Map? What happends to most of the energy that is released during cellular respiration? Where does the material that spews out of a hot spot volcano come from? What fields are related to organic chemistry? How do solid nonmetals differ from solid metals? Example of plant adaptation that permit them to survive in a place with limited water supply? A girdle is used for what purpose? In terms of particles how and why the rate of reaction changes during the reaction of calcium carbonate with hydrochloric acid.? The amount of drift and height of a weather balloon over time is the best means of obtaining information about change in? What is the organelle that works to process and transport materials within the cell and to the outside of the cell called? What if people pack food to live on mars can they still live on mars? Does limiting factors determine the immigration capacity of a population? What are the adaptations of Gorse plants? Is a wall tile a non-combustible material? Who makes up the courtroom work group? What would best be used to demonstrate energy being transformed from electricity to heat demonstrate OR energy OR transformed electricity to heat? What allows animals to sense and respond rapidly to stimuli? How do you dilute trypsin10x? How big In square kilometer are the everglades?