It is a unit of distance used in measuring light wavelengths and is equal to 0.00000001 centimeters).
(It; is; a unit of distance) (distance; used; in measuring light wavelengths) (It; is; equal to 0.00000001 centimeters)
It distance It
is used is
a unit of distance
in measuring light wavelengths
equal to 0.00000001 centimeters