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3) __________ transmit signals that carry pictures, data, music and conversations invisibly over long distances and have been the basis for almost all non-written communication and most wireless technologies used by humans today. A) Microwaves B) Radio waves C) Seismic waves D) Infrared waves

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BriM19
The correct answer is letter b. Radio Waves.

 Radio waves are generated by way of radio transmitters and acquired by using radio receivers. one of a kind frequencies of radio waves have distinct propagation characteristics in the Earth's atmosphere. It is also known to be a kind of electromagnetic radiation.

The correct in this question is B, because air planes use towers and those towers use radio waves to find and direct the planes.