The amount of times that a typical person in the united states brush his or her teeth each day is measured in the :
C. Ones
Brushing your teeth too often will destroy the composition of your teeth
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Answer:d. disengagement.
Explanation:
The disengagement theory of aging states that at a certain age older people will withdraw voluteerily from social interactions or activities that the used to be part of before.
According to this theory it is a natural thing that older people withdraw from society and it should be accepted.
We handle acids and bases in laboratory very carefully because these are corrosive in nature and irritating, and harmful to skin.