Rotation and Revolution — Question 17

The cycle of seasons is determined by the change in the angle of the sun's rays hitting the earth's surface, which is caused by the earth's axial tilt of approximately 23.5 degrees. As the earth orbits the sun, different parts of the earth are tilted towards or away from the sun at different times of the year, resulting in the four seasons.

Torrid zone receives almost vertical rays of the sun and temperate zone and frigid zone receive slanting rays of the sun.