describing electromagnetic waves\ndescribe how electromagnetic waves are formed and travel through space.

Brief Explanations:

Electromagnetic waves are formed when charged particles accelerate. This acceleration causes changing electric and magnetic fields that are perpendicular to each other and to the direction of wave - propagation. These fields self - regenerate as the wave travels through space without the need for a medium.

Answer:

Electromagnetic waves are formed by the acceleration of charged particles. Changing electric and magnetic fields, perpendicular to each other and to the wave's direction of travel, are created. These fields self - regenerate and the wave travels through space without a medium.