Dimensions of color

What are three dimensions of color?
What is the difference between additive and subtractive color mixing?
How does the wavelength spectrum correspond to perceived hue?
What are spectral vs. non-spectral colors?
What is the main claim of the trichromatic theory of color vision? Describe the sensitivity functions of the three cone receptors.
What is a metamer?
How does the opponent process theory of color explain afterimages?
Describe the perceptual experience of a dichromat. In terms of the neurophysiology of the retina, explain the cause of dichromatism.
Describe how the ratio principle explains our experience of lightness constancy.
What is the difference between a reflectance edge and an illumination edge?