Across
- 2. The movement of warm air rising, being replaced by cooler air
- 4. Increased temperatures driven by human activities
- 10. Earth's natural way of staying warm
- 12. Rock made from magma or lava
- 13. Rock made from other rocks under heat and pressure
- 15. Rock made from layers of small fragments
- 17. One product of photosynthesis
- 18. Oceans and freshwater make up this
Down
- 1. A measurement of rainfall
- 3. A current driven by differences in salinity and temperature
- 5. Rocks make up this
- 6. A type of greenhouse gas
- 7. Long term average weather patterns over decades
- 8. A greenhouse gas that is a product of combustion
- 9. Short term state of the atmosphere
- 11. Living things make up this
- 14. One product of photosynthesis
- 16. The air makes up this