What are geostationary and polar satellites?

What do you understand by geostationary and polar satellite ? Discuss their important uses.

What are polar satellites?

What are geostationary satellites? What are the necessary conditions for a satellite to appear stationary ?

Write the main characterisitics of geostationary satellite and polar satellite.

Earth satellites are object which revolve around the earth. Consider a satellite at a height 'h' from the surface of the earth. Distinguish between geostationary satellites and polar satellites.