An instrument with high amplitude has loud sound. An instrument with low amplitude has soft sound.
I believe it is "They have hydroxide ions" because bases are usually made up of hydroxide ions and other element ions.
Answer:
open system
Explanation:
An open system is a system in which both energy and matter are exchanged with the surroundings.
While it depends on what you eat so say you ate sushi or duck or what ever and you have never ate it before then your body will take a while to digest what its taking in!
