Answer:
Seasons of 2021
SPRING
Astronomical Start: Saturday, March 20
Meteorological Start: Monday, March 1
SUMMER
Astronomical Start: Sunday, June 20
Meteorological Start: Tuesday, June 1
FALL
Astronomical Start: Wednesday, September 22
Meteorological Start: Wednesday, September 1
WINTER
Astronomical Start: Tuesday, December 21
Meteorological Start: Wednesday, December 1
Step-by-step explanation:
The first days of each season vary depending on whether we are considering the astronomical start or the meteorological start. While the astronomical start date is established by the position of the Sun and the Earth, the meteorological start date is based on the 12-month calendar and the annual temperature cycle.