Environmental Science
In most areas, the warmest time of the day about 5 feet above the ground occurs:

In the afternoon between 3 and 5 PM
Just before the sun sets
In the early evening after 6 PM
Around noon

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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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