Global positioning system

    1- Describe the process the global positioning system uses to determined location. Draw a sketch to demonstrate this? 2- What is differential correction with regard to GPS?3- Define remote sensing?4- Describe the table join?5- What are the six components of a map?   6- List and define the three components of GPS?7- Detail and describe how remote sensing work? 8- Define: 1-Records. 2-Table. 3-databases? 9- Define and tell the different between Entity and Attribute?10- What are some …... a dot density map?