Discuss the following a) Atmospheric Absorption b) Scattering due to Rain or Fog 2. Write about Multiplexing and Modulation techniques with respect...

1. Discuss the followinga) Atmospheric Absorptionb) Scattering due to Rain or Fog2. Write about Multiplexing and Modulation techniques with respect to Line of Sight Propagation3. What do you mean by Geo stationary orbit? What are the advantages of Geo synchronous satellites?1. What are the advantages of Optical fiber communication?What are the different types of Optical fibers2. Explain the different types of optical fiber3. Explain the signal degradation in fibers