What kind of wave would be observed in outer space between planets, where there is very little matter? an electromagnetic wave such as an xray/ an electromagnetic wave, such as a sound wave/ a mechanical wave, such as an xray/ a mechanical wave, such as a sound wave

Mechanical waves and electromagnetic waves aretwo important ways that energy is transported in the world around us. Waves in water and sound waves in air are two examples of mechanical waves. Mechanical waves are caused by a disturbance or vibration in matter, whether solid, gas, liquid, or plasma. Matter that waves are traveling through is called a medium. Water waves are formed by vibrations in a liquid and sound waves are formed by vibrations in a gas (air). These mechanical waves travel through a medium by causing the molecules to bump into each other, like falling dominoes transferring energy from one to the next. Sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves.

Explanation:

mass and volume are the answers you are looking for