Across
- 3. the range of distances from a star where a planet’s surface temperature could allow liquid water to persist
- 6. this is essential for regulating Earth’s temperature and preventing extremes
- 7. the layer of gases surrounding the planet, held by gravity
- 9. the region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field
- 13. modern technology that is used to monitor climate change by providing a comprehensive view of the planet’s environmental shifts
- 14. the measurement and identification of radioactive isotopes to study their presence, concentration, and behaviour in various materials and environments.
- 15. formed from dioxygen by the action of ultraviolet (UV) light and electrical discharges within the Earth's atmosphere
Down
- 1. the scientific study of pollen and spores to reconstruct past plant communities and environmental conditions
- 2. the ___________ from the Sun was suitable to produce temperatures on Earth that would be suitable for life
- 4. _____ of the Earth was great enough to prevent most gases from escaping into space
- 5. the amount of energy from the sun that reaches the earth
- 8. scientific method of dating tree rings to determine the exact year they were formed and to study past environmental conditions.
- 10. the angle the Earth orbits around the Sun
- 11. indirect measurements used to infer information about variables that cannot be measured directly
- 12. analysis allows scientists to study past climates by examining layers of ice that preserve ancient air, temperature, and environmental data