Answer:
no, Don't rinse with water straight after toothbrushing
After brushing, spit out any excess toothpaste. Don't rinse your mouth immediately after brushing, as it'll wash away the concentrated fluoride in the remaining toothpaste. This dilutes it and reduces its preventative effects.
Explanation:
The asnwer is D
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B and A are the correct answers
A mechanical wave is created when a medium allows the transfer of energy, or moves back and forth or up and down. It <span> is a </span>wave that is a vibration in matter, transferring energy through a material. <span>While </span>waves<span> can move over long distances, the movement of the medium of transmission is limited. Hope this answers the question.</span>
