The dominant spectral colour in soil indicates

Solution (By Examveda Team)

The dominant spectral colour in soil indicates Hue.
Hue is the dominant spectral colour and is related to the dominant wavelength of light. It indicates it's related to red, yellow, green, etc.
Hue is determined by the dominant wavelength of the visible spectrum. It is an attribute that permits colours to be classified as red, yellow, blue or an immediate colour.