The latitude that receives the most direct rays of the sun year-round is the equator, which is at 0 degrees latitude.

Here's why:

* Earth's Tilt: The Earth is tilted on its axis at approximately 23.5 degrees. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year.

* Equator's Position: The equator is the imaginary line that circles the Earth at 0 degrees latitude. It is the only place on Earth that receives direct sunlight year-round.

* Solar Declination: The sun's rays are most direct at the equator throughout the year. The angle of the sun's rays changes throughout the year, but it always remains close to perpendicular at the equator.

While the equator receives the most direct sunlight, it's important to note that the amount of daylight hours varies at different latitudes throughout the year due to Earth's tilt.