Answer:
They allow users to layer map information from different sources.
Step-by-step explanation:
Geographic information system is important today because it allows users to layer map information from different sources one on top of another.
- A geographic information system gathers, stores, visualize and interprets spatially aware data.
- The spatial attribute of its data makes it different from every other information systems or statistical tool out there.
- The system is made up of the hardware, software and the people ware.
- The hardware is usually the computer, gps devices and so on used to collect and interact with data.
- The software is the environment where the data is stored and interpreted using some applications on the computer.
- People ware refers to the human technician that interprets the data.
Geographic information system can overlap multiple map layers to make for more robust interpretation.