Across
- 4. The _____ includes all the water bodies
- 6. The blanket of gases that surrounds the earth.
- 10. The lighter layer of the earth's crust
- 11. An example of a sedimentary rock
- 14. This sphere relates to the land
- 16. There are ___ main branches of Geography
- 17. The most abundant gas in the atmosphere
- 18. The study of rocks
- 19. These rocks contains layers
- 20. The lowest level of the atmosphere
Down
- 1. There are ____ themes in Geography
- 2. The study of changes in the earths landform
- 3. This sphere includes all living things on the earth.
- 5. The innermost layer of the earth
- 7. Rocks formed by change
- 8. An example of a metamorphic rock
- 9. The study of the climate
- 12. The process by which rocks become magma
- 13. These rocks are formed from molten material
- 15. The layer of the earth accounts for most of the volume