Final answer:
Equinoxes occur around March 20 or 21 and September 22 or 23, marking periods of equal day and night length. The tropics, located between the Tropics of Cancer and Capricorn, experience minimal seasonal changes due to consistent sunlight.
Explanation:
Equinoxes refer to the times of the year when the day and night are approximately equal in length and occur around March 20 or 21 and September 22 or 23. The areas between the Tropics of Cancer and Capricorn are known as the tropics, where the sun is directly overhead at least once a year. These regions experience minimal seasonal variation due to consistent sunlight.
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