Final answer:
The Earth's seasons are caused by the tilt of the Earth's axis rather than the differences in distance from the Sun throughout the year.
Step-by-step explanation:
The Earth's seasons are caused by the tilt of the Earth's axis rather than the differences in distance from the Sun throughout the year. Earth's axis is tilted by 23.5°, and as a result, different parts of the Earth receive different amounts of sunlight at different times of the year. When the Northern Hemisphere is tilted towards the Sun, it is summer in that hemisphere, while the Southern Hemisphere experiences winter.