Question

why is the region around the equator warmer all year than the rest of the planet, not including the deserts?

Explanation:

The equator receives sunlight most directly throughout the year. This direct - angle sunlight means more concentrated solar energy per unit area, leading to higher temperatures compared to regions with lower - angle sunlight.

Answer:

The region around the Equator is warmer all year because sunlight strikes most directly there, resulting in more concentrated solar energy.