- Interruption of a radio signal is similar to distortion of a radio signal
- Interruption of a radio signal causes a buzzing sound
- Hence, distortion of a radio signal causes a buzzing sound

- Distortion of a radio signal causes a buzzing sound
- Radio signal is a kind of radio wave
- Therefore, distortion of the radio waves causes a buzzing sound

- Distortion of the radio waves causes a buzzing sound
- Electromagnetic radiation distorts the frequency of the radio waves
- Hence, electromagnetic radiation causes a buzzing sound by distorting the frequency of the radio waves

- Electromagnetic radiation causes a buzzing sound by distorting the frequency of the radio waves
- Electromagnetic radiation is made of electromagnetic waves
- So, electromagnetic waves cause a buzzing sound by distorting the frequency of the radio waves

Hence, electromagnetic waves cause a buzzing sound by distorting the frequency of the radio waves
Q: Radio signal interruption sometimes causes a humming or buzzing sound. These sounds are most likely caused by
Context:
- Interruption of a radio signal is similar to distortion of a radio signal 
- Electromagnetic radiation distorts the frequency of the radio waves 
- Interruption of a radio signal causes a buzzing sound 
- Radio signal is a kind of radio wave 
- Electromagnetic radiation is made of electromagnetic waves