Question

Earth be considered as a communication medium.

(a) True

(b) False

This question was addressed to me in quiz.

The above asked question is from Types of Electronic Communication topic in chapter Introduction to Electronic Communication of Avionics

Answer 1

Correct option is (a) True

For explanation I would say: Earth can be considered as a communication medium as it can carry low frequency sound waves as well as conduct electricity. Communication for some submarines uses earth as a communication medium.