Earth's tilt refers to the angle at which our planet is inclined relative to its orbit around the Sun. This tilt is approximately 23.5 degrees and is responsible for the changing seasons. As Earth orbits the Sun, different parts of the planet receive varying amounts of sunlight, leading to seasonal variations in temperature and daylight. The tilt of Earth is also known as axial tilt or obliquity. It plays a crucial role in climate patterns and influences weather systems. Without this tilt, there would be minimal seasonal changes, resulting in a more uniform climate across the globe.