Question

What is one reason that electromagnetic waves are used in long-distance communication?

Is it because they don't lose energy over long distances?

Answer 1

Answer:

The main reason why we use radio waves and microwaves probably have to do with the fact that they are low in energy, due to their long wavelengths and low frequency- and therefore have a low ionizing ability on other materials. This makes them rather safe for commerical and non-commerical use alike.