What evidence can you look for in shadows on Earth's surface that indicates the changes in the Sun's position in the sky?

Position of the shadows

Explanation:

When the sun changes position, it will cast a shadow from objects. The shadow on a tree will face one direction but as time goes on and the sun moves, the shadow of the tree will be on a different place on the ground. From sun rise to sunset, the shadow of that tree and other objects will be facing the opposite direction.