White and black isn't colors... do your homework you autistic fuck
Sorry not sorry
How about you do your homework first?
White is the result of the mixing all base colours of the additive colour mixture. (Red, Green, Blue)
Easiest to observe when having three lamps with those colours and you point them at the same spot.
Since this is all about light, black is obviously the lack of light. (Shadow basically)
Black in the subtractive colour mixture however is the mixture of all base colours as well. Use watercolours to observe that.
Mix Cyan, Magenta and Yellow and you get black.
Those three colours each take up about one third of the visible light spectrum and absorb this light.
So if 3/3 of the visible light is being absorbed, the result is obviously black.
Colour is only light meeting an object, that light is being absorbed, and thanks to quantum physics photons of different wavelengths is being emitted. An ordinary leaf for example absorbs the sun's light (All sorts of wavelengths, that is why it appears to be white).
That leaf then emits light of about 520nm, which for us appears to be green.
If you use no colour, no light can be absorbed and thus resulting in a lack of colour. (White basically, though since whatever you look at absorbs light of certain wavelengths, that object might not appear to be white. But the light initially meeting that object would be white-ish to us)