Sound and light are both found as (4), with a variety of (5). The sun, a source of light waves specifically, releases a type of (6). The sun emits invisible (7). It can be found as UVA or UVB types. These lights give off different levels of (8), some of which can be harmful. ANSWER CHOICES: Wavelengths, Waves, Radiation, Ultraviolet light, Electromagnetic wave.