Environmental Science
Thermal belts are:

Cold, below-freezing air found at the top of a mountain
Warmer hillsides that are less likely to experience freezing conditions
Pockets of warm air resting on a valley during the afternoon
Pockets of cold air resting on a valley floor at night

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Environmental Science
How do red and blue light differ?

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

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