Final answer:
The spectrum made up of different waves is the Electromagnetic Spectrum, consisting of various types of waves with different frequencies, wavelengths, energies, and penetrating abilities.
Step-by-step explanation:
The spectrum that is made up of different waves is the Electromagnetic Spectrum. It consists of a broad range of frequencies of electromagnetic radiation, which includes various types of waves such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.
Each type of electromagnetic wave has a different frequency, wavelength, energy, and penetrating ability. For example, radio waves have longer wavelengths and lower frequencies than visible light, while gamma rays have shorter wavelengths and higher frequencies.
Therefore, the correct answer to the question is A. Electromagnetic.