Helps with not making you sick or have mood swings
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.
The correct answer is B.
A combination of poor nutrition and a sedentary lifestyle are leading to greater occurrences of obesity in children and adolescents. This is true, especially in first world countries like the US. Children and adolescents are not as physically active as they used to be around 20 - 30 years ago due to advances in technology. The diets tend to be high in sugar and processed food as they are cheaper and easier to buy and easier to feed the kids with.
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cool downs affect your body by 1 stretching everything after the work out 2 prevent you from hurting yourself 3 help you stay in shape so you can work out more. Warm ups help you with 1 stretching your muscles so you don't get hurt 2 stop you from breaking something 3 helps get your joints into place.
