It is sensors :) i hope this helped you :)
You have rods and cones in your eye. Cones detect colour and fine detail. Rods are used for monochrome vision; usually, monochrome vision is used in poorly lit, dark environments. Rods and cones are both in the retina of the eye.
Cones = Colour. CC is a good mnemonic.
Because air pressure decreases at the rate of 0.91 inches per 1,000 feet of ascent, rising air expands and cools. The flat bottom of cumulus clouds defines the exact height at which a critical combination of temperature and air pressure causes water vapor within the rising current to condense into a visible cloud