Jake and his cousin adriane live in opposite hemispheres on earth. if it is march 20 (spring equinox) where jake lives, which time of the year is it where adriane lives?

Equinox is defined as the specific position of the earth with respect to the sun in which the entire earth experiences equal day as well as equal night. It is the position when the earth's equatorial plane directly passes through the center of the sun. It is divided into two types namely-

1) The Vernal equinox- It occurs usually on 20th/21st March every year.

2) The Autumnal equinox- It occurs normally on 20th/21st September each year.

According to the provided condition, Jake experiences Vernal or Spring equinox that takes place on 20th March. Whereas, Andriana living on the opposite hemisphere experiences Autumnal equinox that place on the 20th of September.

Thus, Andriana is experiencing the autumn (20th of September) in that year.