colored signals

When lives and expensive equipment can be lost or endangered through misidentification of colored signals, the importance of normal color vision is obvious.



acres
adult
advice
arrangement
attempt
August
Autumn
border
breeze
brick
calm
canal
Casey
cast
chose
claws
coach
constantly
contrast
cookies
customs
damage
Danny
deeply





depth
discussion
doll
donkey
Egypt
Ellen
essential
exchange
exist
explanation
facing
film
finest
fireplace
floating
folks
fort
garage
grabbed
grandmother
habit
happily
Harry
pluck
plucked
plucker
pluckier
pluckiest
plucking
plucks
plucky
plug
plugged
plugging
plughole
plugs
plum
plumage