<span>The systems of the body involved in preparing and eating a sandwich are : </span>The skeletal, muscular, and digestive system. They are all directly involved in eating and preparing a sandwich.
Electromagnetic radiation is an electric and magnetic disturbance traveling through space at the speed of light (2.998 × 108 m/s). It contains neither mass nor charge but travels in packets of radiant energy called photons, or quanta.
