Which of the following statements best defines a light source?

Any object that is bright or shiny.

An object that produces its own light energy.

A surface that reflects light from another object.

An object that can block light to create a shadow.

How is the Sun fundamentally different from the Moon in the context of light?

The Sun is a light source, while the Moon only reflects light.

The Moon is a light source, while the Sun only reflects light.

Both the Sun and the Moon are primary light sources.

The Sun produces heat and light, while the Moon produces only light.

An object must exist to be seen.

An eye must be present to detect light.

A light source must generate light.

The environment must be completely silent.