Question

what happens in the northern hemisphere around september 22?
a summer solstice
b winter solstice
c autumnal equinox
d vernal equinox

Explanation:

To solve this, we analyze each option:

• Option a: Summer solstice occurs around June 21 in the Northern Hemisphere, so a is incorrect.
• Option b: Winter solstice occurs around December 21 in the Northern Hemisphere, so b is incorrect.
• Option c: Autumnal equinox (fall equinox) occurs around September 22 - 23 in the Northern Hemisphere, marking the start of autumn with nearly equal day and night.
• Option d: Vernal equinox (spring equinox) occurs around March 20 - 21 in the Northern Hemisphere, so d is incorrect.

Answer:

c. autumnal equinox