The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
False, There is other things aswell
Mechanical digestion is chewing, and chemical digestion is the saliva in your mouth breaking down food.
Your answer would be B. It forms hydrogen ions (H+)