The electromagnetic spectrum is made up of (3 points) Select one: a. sound waves and light waves b. only light waves that you can see c. light waves you can see and waves of higher energy radiation d. light waves you can see and waves of both higher and lower energy radiation
The answer is d: light waves you can see and waves of both higher and lower energy radiation.
The electromagnetic spectrum is the spectrum of all frequencies of electromagnetic (or light) radiation. The visible spectrum is a small range of these frequencies.
