Question

a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum. visible light, radio, gamma rays, infrared

Explanation:

Radio waves have the lowest frequencies and longest wavelengths in the electromagnetic spectrum. Visible light has frequencies and wavelengths in the middle - visible to the human eye. Gamma rays have the highest frequencies and shortest wavelengths. Infrared has longer wavelengths than visible light but shorter than radio waves.

Answer:

Radio