Here's the breakdown:

* Sunlight: The sun is the primary source of light in our solar system.

* Moon's surface: The moon's surface is covered in dust and rock, which are good reflectors of light.

* Reflection: When sunlight hits the moon, it bounces off the surface and travels towards Earth.

* Visibility: We see the moon because the reflected sunlight reaches our eyes.

Why does the moon appear during the day sometimes?

The moon orbits the Earth, and sometimes its position relative to the sun and Earth allows some sunlight to reflect off the moon during the day. However, the sun's brightness usually makes the moon difficult to see during the day.