Examlex
What part of the mantle is the volume of hot,partly melted rock that flows?
Blue
A color, part of the visual spectrum, that is perceived when light has a dominant wavelength of roughly 450 to 495 nanometers.
Green
Often associated with the color representing nature, growth, renewal, and environmental sustainability.
Trichromatic Theory
A theory of color vision that suggests our eyes can perceive color because they can detect three different wavelengths of light corresponding to red, green, and blue.
Helmholtz
A German physicist and physician known for his contributions to the understanding of the mechanisms of vision and hearing among other areas.
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