Why does the sky turn yellow after rain?

The yellowing of the sky after rain is the function of mirror and spherical reflection such as refraction, reflection and scattering of rain. After the rain, the clouds in the sky are very low. If there is a strong light source on the ground, the light will be reflected, causing the sky to turn yellow.

Sky:

The sky is empty; The vast space where the sun, moon and stars are listed. It is an important part of the earth. There is an ancient saying in China that the sky is round and the earth is round. People can observe meteorological or astronomical phenomena in the sky, so as to know the change of weather, the passage of time or their position. You can know the time of day at sunrise and sunset, and the moon's profit and loss for a month at night. The big dipper can indicate the north. The thickness and shape of clouds can judge whether it will rain or not. You can enjoy many beautiful phenomena in the sky, such as rainbow, aurora and meteor shower. Birds can fly in the sky. Due to the increasing use of fossil fuels such as oil, especially fuels such as coal that will release sulfur dioxide after burning, the visibility of the sky has gradually decreased since 1973, except in Europe.