;Answer:
Due To Scattering, Refraction and Defraction
Explanation:
Red color gets scatted the most. That's why can be seen in the foggy environment, and that;s why traffic light red is the most prominent. In dark, phenomena like scattering, refraction and defraction act together. In the absence of light, scattering can be less and refraction contribute to judge the color of the object. Now between the human eyes and the object, there are two phenomena " refraction and defraction, which makes the watcher spot his shirt as dark grey.
Its temperature and clouds because according to the temperature the clouds will react
