GIS can be used to generate visual models of future phenomena and processes based on the present data.
Consider the following statements about Geographical Information Systems (GIS):
1. It handles attributes data on a technical base.
2. It can draw maps and other graphics with great ease and speed.
3. It is a slow and tedious task involving creation of GIS data base.
4. It works only in combination with remote sensing data.
5. It can analyze data for specified task and thus help decision making
Which of these are correct?