The reason for the appearance on the ground during the day of the shadow of objects.

The appearance of shadows from objects is very easy to explain. The thing is that the sun does not shine directly, but at a certain angle, and the sun’s rays fall on the earth. Suppose there is a pillar. So, the sun’s rays hit the pillar and do not fall further to the ground, and so, in the place where the pillar blocked the flight of the sun’s rays and a shadow is formed. As the sun is constantly moving throughout the day, so the shadow moves. This is how a shadow appears on the ground from objects.