Answer:
Equator from planet Earth.
Step-by-step explanation:
During the equinox of March 21 the sun is on the planet's equator for this reason at this time the day and night have the same duration
By this date the Sun reaches its zenith, or the highest point in the sky, at 90 ° in relation to a person on Earth, so the parallel of the decline of the Sun and the celestial Ecuador coincide that day.