Answer:
In the Northern Hemisphere the autumnal equinox falls about September 22 or 23, as the Sun crosses the celestial equator going south.
Explanation:
In the Southern Hemisphere the equinox occurs on March 20 or 21, when the Sun moves north across the celestial equator.
The Great Plains have a continental climate. Over much of their expanse, cold winters and warm summers prevail, with low precipitation and humidity, much wind, and sudden changes in temperature. The major source of moisture is the Gulf of Mexico, and the amount falls off both to the north and west.
The coordinates of these endpoints can help us find the length and the midpoint, or the point that is halfway between the two endpoints, of the line segment. We can calculate the length of a line segment by using the Distance Formula, and we can calculate the midpoint of a line segment by using the Midpoint Formula.