What is responsible for setting up the differences between the tropical, temperature, and polar zones? a. earth's revolution b. precession c. earth's tilt d. the polar jet stream

Earth's tilt

That's logical, but not the case, for Earth. Instead, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane – the plane of Earth's orbit around the sun. The tilt in the axis of the Earth is called its obliquity by scientists.

nucleus

would be most reasonable answer tbh