Distinguish between Sky wave and Space wave modes of propagation in a communication system.

Explanation

In Sky wave propagation, radio waves are emitted from the transmitter antenna antenna and reach the receiving antenna after reflection by the ionosphere. Frequency ranges from 1.7 mHz to 40 mHz and is used by short wave broad cast service.
In space wave communication, we send, receive and process the information through space by using tall antenna
Here, loss of power called attenuation of ground wave is felt due to induced current of the Earth.