Answer:
Cleaning.
Explanation:
Ultrasound are the high sound waves that has the frequency above than 20kHz. The ultrsonic sound can be detected by animals like bats and has medical importance as well.
The cleaning of the medical instruments and machines are done by ultrasonic cleaners. These cleaners uses the ultrasonic waves to clean the dirt and needs a proper solvent medium for cleaning. The cavitation bubbles are produced that are used for cleaning.
Thus, the correct answer is cleaning.
I don’t know but I think it is IDK SUPPER SORRY
Explanation:
Personal values refers to a person's sense of morality; usually in terms of their behavioural characteristics, and this values acts as guiding principles in the person's lives.
For example, a person who has a high regard for life may avoid smoking tobacco, and this same individual may tend to dispose waste materials properly.
To hit a overhand, you jump and smack the ball with your palm when the ball goes over the net
To hit a underhand, you put the ball on the undominant hand and you throw it up then you smack it with your palm
the advantages of a underhand is it might not work and may hit the net
advantage of a overhand is, it goes fast and the opponent might not see it coming.
