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.
B. eclampsia
a condiction in which one or more states of toxemia convulsive occurs in a pregnant woman suffering from high blood pressure often followed by a comma and posing a threat to the mother and unborn child
Answer:
(C) Building fires near flammable debris.
Explanation:
I have no explanation, except the fire is not environmentally sound.
Answer:
Eating high-fat foods every day at lunch is an example of cumulative risks.
Hope this helps
