Question

What causes the moon to be illuminated?

A. concave
B. reflection
C. medium
D. refraction

Answer 1

Reflection

Step-by-step explanation:

The light from Earth's surface, reflected back towards the Moon, can illuminate it all the same. This is why, when the Moon is in a crescent phase, you can still see features on the dark portion of the Moon: we call this reflected, illuminating light the phenomenon of Earthshine.