Environmental Science
How do red and blue light differ?

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

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Environmental Science
Frost forms when:

Water vapor changes into ice without first becoming a liquid.
The dew point is 32oF or below.
Objects on the ground cool below the dew point temperature.
All of these

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