Here's why:
* Earth's Tilt: The Earth is tilted on its axis at approximately 23.5 degrees. This tilt is the primary reason we have seasons.
* Equator's Position: The equator is the imaginary line that circles the Earth at 0 degrees latitude. It is the point where the Earth's axis intersects with the Earth's surface.
* Solar Angle: Because the equator is directly in line with the sun's rays at the equinoxes (spring and fall), it receives the most direct sunlight year-round. This means the sun is high in the sky, making the rays hit the Earth at a near-vertical angle.
While other regions may experience periods of near-vertical rays during specific seasons, only the equator consistently receives them throughout the year.
