Environmental Science
How do red and blue light differ?

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

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Environmental Science
The wind-chill factor:

Takes into account humidity and air temperature in expressing the current air temperature
Tells farmers when to protect crops from a freeze
Indicates the temperature at which water freezes on exposed skin
Determines how low the air temperature will be on any given day
Relates body heat loss with wind to an equivalent temperature with no wind

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