fact: why do we have eyebrows ?

Although we have hair all over our bodies,
it tends to grow thickest where some form of
protection is needed. Both eyebrows and eyelash
are designed to protect the eyes from dust.

facts: why do people blink?

Facts: Everytime we blink,
normally about 360 times per hour,
tear is secreted by the lachrymal
gland In the corner of the eye.
This tear spread over the cornea
to keep the eyeball clean & moist.
The amount you blink increases when dust,
wind or brignt light threates to harm the eye.