The moon appears half lit, half dark from the surface of Earth on two days each month. What causes this? (1 point)

Question

O Earth's shadow is blocking the light from the sun.
• It is a partial lunar eclipse.
Half of the moon is totally eclipsed
Half of the moon's surface that is illuminated by the sun is visible from Earth's perspective.

Answer 1

The correct answer is: Half of the moon's surface that is illuminated by the sun is visible from Earth's perspective.

This phenomenon occurs during the first quarter and last quarter phases of the moon when half of the moon is illuminated by the sun and half is in shadow, as viewed from Earth.