Question

Anyone with a receiver can tune it to pick up the radio waves so they are suitable for broadcasting radio and TV programs to large numbers of people. An advantage is that this method of communicating is that it does not require wires to transmit information. A disadvantage is that radio stations using similar transmission frequencies sometimes interfere. Which of these is NOT true of radio waves?
Responses
A Radio waves are the lowest-energy electromagnetic waves.Radio waves are the lowest-energy electromagnetic waves.
B Radio waves can be converted to sound waves by the human ear.Radio waves can be converted to sound waves by the human ear.
C Radio waves are the lowest-frequency and longest-wavelength electromagnetic waves.Radio waves are the lowest-frequency and longest-wavelength electromagnetic waves.
D Medium wavelength radio waves are reflected from the ionosphere so they can be used for long distance communication.Medium wavelength radio waves are reflected from the ionosphere so they can be used for long distance communication.
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Answer 1

B

The human ear detects pressure (sound) waves, not radio waves. Radio waves must be received and converted by electronic equipment (receiver/demodulator and speaker or headphones) before you can hear the sound.