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

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 air is going to come out because of the low pressure.