Milankovitch cycles include the shape of Earth's orbit (its eccentricity), the angle that Earth's axis is tilted with respect to Earth's orbital plane (its obliquity), and the direction that Earth's spin axis is pointed (its precession).
Step-by-step explanation:
The Milankovitch cycles describe how relatively slight changes in Earth's movement affect the planet's climate. The cycles are named for Milutin Milankovitch, a Serbian astrophysicist who began investigating the cause of Earth's ancient ice ages in the early 1900s, according to the American Museum of Natural History (AMNH).