Across
- 3. The current geological epoch, characterized by relatively stable climate conditions since the last ice age.
- 5. The point in a celestial body's orbit where it is farthest from the Sun.
- 6. The angle between the rotational axis of a celestial body and its orbital axis.
- 9. The day with the shortest period of daylight and longest night of the year.
- 11. Periods of warmer climate between ice ages when glaciers retreat.
- 12. The point in a celestial body's orbit where it is closest to the Sun.
- 13. A geological epoch known for multiple ice ages and the evolution of early humans.
- 14. The day with the longest period of daylight and shortest night of the year.
- 17. Large-scale ocean currents driven by differences in temperature and salinity.
Down
- 1. A measure of how much an orbit deviates from being a perfect circle.
- 2. The amount of solar radiation received per unit area on a surface.
- 4. A process where the output of a system influences its own operation.
- 7. The slow change in the orientation of a celestial body's rotational axis.
- 8. Periods during an ice age when glaciers reach their maximum extent.
- 10. The angle between the Sun and the vertical at a particular location on Earth.
- 11. The angle between a celestial body's orbital plane and a reference plane.
- 15. Days when the Sun crosses the celestial equator, resulting in nearly equal day and night lengths globally.
- 16. A period of long-term reduction in the temperature of Earth's climate, leading to the presence of extensive ice sheets.
