Green
That would be black.
Main pigment is chlorophyll.They are gree in color.
Red ... ;)
The "color" is only the sensation produced in your brain. It depends on exactly which nerve endings on the rear surface (retina) of your eye are stimulated, and how, and what signal they send to your brain through your optic nerve. Those receptors in the retina of your eye respond differently to different wavelengths (frequencies) of light. And if the wavelength is too long or too short, then they don't respond at all, and you can't see the radiation ... like radio waves or x-rays.
Dark because the volcano explosian is very dark color of lava thats also formed with heat .
Anything other than black, white, or different shades of gray is normally known as "color".
"Color" is the sensation that a light produces in your eye and your brain. Ultraviolet light is not detected by your eye, so there's no such thing as its color.
black
purpleish light
white light!
grey
Reflects all light beams which have the wave length of the color of that object. Each color has a particular wave length in the electromagnetic spectrum.
heat is produced, light is produced, gas is produced, the chemicals change color.
purple
Black
yellow
If you mix green light and blue light, you get turqoise (a greenish-blueish color) light. Hope this helped! -ID6784