Question

which position of earth would be most accurate for september 21st?

Explanation:

Step1: Recall equinox and solstice dates

In the Northern Hemisphere, March 21st is the vernal (spring) equinox, June 21st is the summer solstice, September 21st - 23rd is the autumnal (fall) equinox, and December 21st is the winter solstice.

Step2: Analyze Earth - Sun positions

At the autumnal equinox, day and night are approximately equal in length globally. The Earth's axis is not tilted towards or away from the Sun in a way that would cause extreme differences in daylight hours like at solstices. Position 2 represents the autumnal equinox.

Answer:

2