Dust on bookshelves and elsewhere in a house is made mostly of
A)dry mucous.
B)white blood cells.
C)dried sweat and uric acid crystals.
D)dead skin cells.
E)pulverized minerals and "dirt."

Name: Dust on bookshelves and elsewhere in a house is made mostly of A)dry mucous. B)white blood cells. C)dried sweat and uric acid crystals. D)dead skin cells. E)pulverized minerals and "dirt."
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Question

Quizplus · Accepted Answer

Dead skin cells make up the majority of household dust, accounting for about 70-80%.

Dust on Bookshelves and Elsewhere in a House Is Made