Question

what are sources and receivers of light? which of the following is the source of light that illuminates the moon? the earth illuminates the moon. the sun illuminates the moon. the moon is luminous and gives off its own light. the moon is not illuminated.

Explanation:

The sun is a luminous object (it emits its own light). The moon is a non - luminous object. It reflects the light from the sun. The Earth does not illuminate the moon in the sense of being a light source for it (the Earth's light contribution is negligible compared to the sun in terms of illuminating the moon). Also, the moon is not luminous (it does not produce its own light), and it is illuminated (by the sun).

Answer:

The sun illuminates the moon.