1 Part: A satellite which revolves round the earth with the same angular speed and the same direction as that of earth around its axis is a geostationary satellite.
Uses of artificial satellites:
1. for mapping of forests (or to study deforestation)
2. for mapping of rivers, reservoirs
3. for pollution monitoring.
4. for weather forecasting, prediction, and warning of cyclones, mapping of flood-affected areas
5. geostationary satellites are used for telephones, mobiles, broadcasting of radio and television.