Environmental Science
A red shirt

Selectively scatters red wavelenghts of visible light and absorbs the rest
Selectively absorbs red wavelenghts of visible light and scatters the rest

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Environmental Science
How do red and blue light differ?

The wavelength of red light is longer.
Red light has a higher intensity.
Blue light has a higher speed of propagation.
Red and blue light have different directions of polarization.

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