Q 01/05
A) Loose carpet fibres
B) Dropped sugar crumbs
C) Shed pet hair
D) Flakes of human skin
Answer · why
A single mite produces about 2,000 droppings in its ten-week life, and those droppings are the allergen, not the mite.
Q 02/05
A) 24%
B) 54%
C) 84%
D) 99%
Answer · why
Europe fared a little better at 68 percent; the mites simply prefer humid places.
Q 03/05
A) One in ten
B) One in three
C) Almost none
D) Two-thirds
Answer · why
A small 2014 study found them on every adult tested; they eat skin cells and oil, and mate at the mouth of the follicle.
Q 04/05
A) Dried-up sweat
B) Hardened skin oil
C) Trapped dust
D) Shed skin cells
Answer · why
On average about 60 percent of it is keratin, the same protein as your hair and nails.
Q 05/05
A) Sweet and sour
B) Light and dark
C) Hard and soft
D) Wet and dry
Answer · why
A single letter change in one gene decides it; the dry, flaky type is common in East Asia and among Native Americans.
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