Answer:
Definitely A!!!
Explanation:
<u>Here are the reasons as to why B, C, and D are incorrect:</u>
-Playing on the computer requires you to sit down -- which is not being active.
-Taking a nap is considered resting -- the complete opposite of being active!
-Reading a book is not being active as you would normally be sitting down somewhere to read
Answer:
human have 46 chromosomes 23 from female gametes
Answer: the heart philosophy is like when there r different types of stages that can go on wit ur heart but it would mostly depend on what it is
Explanation:
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.
Answer:
The word demography comes from two ancient Greek words, demos, meaning “the people,” and graphy, meaning “writing about or recording something” — so literally demography means “writing about the people.”
