Answer:
If the Earth were not tilted, there would be no seasons. The tilt of the Earth's axis causes the different hemispheres to receive different amounts of sunlight throughout the year, which leads to the four seasons (spring, summer, fall, and winter). Without the tilt, the amount of sunlight and the length of the day would be the same throughout the year, resulting in a more uniform climate. Additionally, the tilt of the Earth's axis is responsible for the phenomenon known as the polar day and night, where the sun does not set or rise for extended periods of time in the polar regions.
Step-by-step explanation: