A diagram of the Earth-Sun-Moon system is provided. The diagram shows the relative position of the Moon at various times in the lunar cycle. We would observe a totally dark moon starting to become illuminated when
the Moon moves between which two positions?
Moon
Position Y
0
Sun
Moon
Position X
Moon
Position 2
-
0
Moon
Position W
Position Z and Position Y
Position Y and Position X
Position X and Position W
Position Wand Position Z