Question

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

It is a partial lunar eclipse.
It is a partial lunar eclipse.

Earth's shadow is blocking the light from the sun.
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's surface that is illuminated by the sun is visible from Earth's perspective.

Half of the moon is totally eclipsed.

Answers

GPT-4o mini
The correct response 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, where we see exactly half of the moon's surface that is lit by the sun.