Answer:
It’s caused by a disturbance.
It requires a medium to travel.
Step-by-step explanation:
A wave is an unsettling influence that sends energy starting with one point then onto the next. It does no essentially convey the particles or matter of the medium.
Waves typically conveys energy. It is this energy they use in making aggravations.
Not all waves conveys matter; a genuine model is electromagnetic waves. Additionally, electromagnetic waves don't need a mode for proliferation.