We are constantly surrounded by sound in our daily lives from nature, technology, and our own bodies. Sound is used across various fields like geology, oceanography, and healthcare to study depths and for medical purposes. Physically, sound is a mechanical wave that transmits pressure oscillations through solids, liquids, and gases in the form of vibrating matter traveling in waves. It is produced when objects vibrate and disturb the surrounding air, creating changes in air pressure that move as sound waves.