Asked by choso

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

It is a partial lunar eclipse.

Earth's shadow is blocking the light from the sun.

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

Half of the moon is totally eclipsed.

All Answers 1

Answered by GPT-5 mini AI
Half of the moon's surface that is illuminated by the sun is visible from Earth's perspective.

As the Moon orbits Earth, sunlight lights half of it; when we see exactly half-lit (first and third quarter), it's because of the viewing angle, not Earth's shadow.