<human>: Is it true that the Earth's tilt causes the seasons?
<bot>: Yes, the Earth's tilt is what causes the seasons. The Earth's axis is tilted 23.5 degrees from the vertical and this angle changes throughout the year as the Earth orbits the sun. This change in angle affects the amount of sunlight reaching different parts of the Earth during the day. When more sunlight reaches a certain part of the Earth, that area experiences warmer temperatures and vice versa for colder temperatures.