What characteristic do most objects share regarding light?

Most objects in the environment are non-luminous and only reflect light. This means that they do not produce their own light but instead scatter and reflect light from sources such as the sun or artificial lights. For example, a book on a table does not emit light on its own; rather, it appears visible because it reflects light that hits its surface.

While luminous objects, like the sun or a light bulb, do create their own light, the vast majority of everyday items we encounter—such as furniture, clothing, and walls—depend on reflecting light to be seen. This characteristic is crucial for how we perceive the world around us.

In contrast, the other options indicate incorrect properties: some objects do emit light, while others may not reflect light effectively or absorb all light, but these do not represent the common characteristic shared by most objects.