Originally posted by RBHILLAnswer: B. Half an hour. The eye blinks once every two to ten seconds, producing a bathing and lubricating solution. When calculated, this causes our eyes to be closed for half an hour each day.
81. For How long has the average human been preprogrammed to close the eyes each day during the WAKING hours?
A. None.
B. Half an hour.
C. Two minutes.