The official name for the first day of spring is Spring _______.

The official name for the first day of spring is Spring _______.

The official name for the first day of spring is Spring _______.

• Periapsis
• Apoapsis
• Antapex
• Equinox

ANSWER 

     (4)

• Equinox

source https://sportsnewsstar.blogspot.com/2022/03/the-official-name-for-first-day-of.html