In which region do the least seasonal temperature changes occur?

The equatorial region experiences the least seasonal temperature changes due to its consistent proximity to the equator throughout the year. This area is characterized by a tropical climate, which means that temperatures remain relatively stable, with minimal variation between different times of the year. The equatorial zone receives direct sunlight year-round, resulting in consistently warm temperatures and high humidity.

In contrast, the polar and subpolar regions experience significant seasonal changes due to the tilt of the Earth's axis, leading to extreme variations in temperature between summer and winter. The temperate zone also exhibits notable seasonal temperature fluctuations as it experiences distinct seasons influenced by varying sunlight exposure throughout the year. Therefore, the equatorial region stands out for its minimal seasonal temperature change compared to these other climate zones.