There are only two times of the year when the Earth's axis is tilted neither toward nor away from the sun, resulting in a "nearly" equal amount of daylight and darkness at all latitudes. T<span>he word equinox is derived from two Latin words</span><span> equal and </span>Nox.<span> At the equator, the sun is directly overhead at noon on these two equinoxes. </span>
I think the preposition is the word (about).
