Here's why:
* Sunlight: The sun emits light that travels in straight lines.
* Tree: The tree's leaves, branches, and trunk are made of materials that reflect light.
* Reflection: When sunlight hits the tree, some of it is absorbed, but some of it bounces off (reflects).
* Eyes: The reflected light travels to the person's eyes.
* Brain: The person's brain interprets the reflected light as an image of the tree.
So, the person sees the tree because light from the sun is reflected off its surface and reaches their eyes.
