Across
- 3. from earth's atmosphere, carbon dioxide is used by plants, algae, and cyanobacteria during the process of
- 4. which planet was formed from the light gases of the outer solar nebula?
- 6. earthquakes vibrations are detected, measure, and recorded by instruments called
- 10. which industry's water requirements is the greatest burden on California's fresh water supply?
- 11. a rift valley is evidence of which kind of plate boundary?
- 12. when a layer of cool air at the surface of earth is found under a layer of warmer air above it, the result is known as
- 14. the moons atmosphere
Down
- 1. energy source that is most likely to be abundant in California due to its position on a plate boundary
- 2. what is the driving force for surface ocean currents?
- 5. holes the most massive stars will end their lives as
- 7. geothermal energy is possible where there is
- 8. this type of volcano is least explosive
- 9. the Richter scale measures the earthquakes
- 13. where stars begin there life cycle