Electricity is the FLOW of electrons, because electrons PASS from atom to atom
<span>A transverse wave is a moving wave that consists of oscillations occurring perpendicular (or right angled) to the direction of energy transfer. If a transverse wave is moving in the positive x-direction, its oscillations are in up and down directions that lie in the y–z plane. Light is an example of a transverse wave.</span>
Alex is driving at 21.2508882 miles per hour
Number 20 is B and 21 is C