The Electromagnetic spectrum is made up of

sound waves and light waves
only light waves that you can see
light waves you can see and waves of higher energy radiation
light waves you can see and waves of both higher and lower energy radiation

Question

The Electromagnetic spectrum is made up of

 sound waves and light waves
 only light waves that you can see
 light waves you can see and waves of higher energy radiation
 light waves you can see and waves of both higher and lower energy radiation

anonymous · Answer

you can't see light waves so i'm going to go with the first one - sounds waves and light waves.