Question

in the diagram below, which location represents a full moon? a b c d

Explanation:

Step1: Understand the moon - earth - sun relationship

When the moon is on the opposite side of the earth from the sun, the entire sun - lit side of the moon is visible from earth, which is a full moon.

Step2: Locate the position in the diagram

In the given diagram, position C is on the opposite side of the earth (represented by the black - and - white sphere) from the sun (the large yellow sphere).

Answer:

C