Physics, 16.10.2020 14:01 lexybellx3

Which two options are reasons that electromagnetic waves can be used effectively in communication devices?
A. Any type of electromagnetic wave can be used for
communication
v B. The speed at which they carry information can be varied.
C. They require no wires to carry information
D. They can travel through either air or other types of matter
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Which two options are reasons that electromagnetic waves can be used effectively in communication d...