Twelve hours of daytime and twelve hours of nighttime occur at every location on Earth whenever the Sun reaches the
A) north or south celestial pole.
B) celestial prime meridian.
C) vernal or autumnal equinox.
D) ecliptic.

Question

Quizplus · Accepted Answer

During the vernal (spring) or autumnal (fall) equinox, the Earth's axis is not tilted toward or away from the Sun, resulting in nearly equal amounts of daylight and nighttime at all latitudes.

Twelve Hours of Daytime and Twelve Hours of Nighttime Occur