What is called Remote Sensing?
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?