Across
- 4. Fuel, petroleum, coal, or natural gas that is used as fuel and is made from the built-up remains of ancient plants and animals
- 6. not active
- 7. a layer of rock, sand, or gravel through which water can flow; an underground pool of water
- 10. a fracture in the earth’s crust
- 11. an area of land that is low compared to surrounding land
- 12. Rim, the countries and land surrounding the Pacific Ocean
- 14. melted or liquefied by heat
- 15. having to do with the movement of the earth’s crust
- 18. Pattern, the location, and arrangement of natural and human features of the land
- 22. with respect to weather, mild; not extremely hot or cold
- 23. leading, important, or well known
- 24. a high, wide, flat area of land
Down
- 1. having the characteristics of a city
- 2. underground
- 3. referring to electricity that is created by using the energy of water currents
- 4. a long, narrow opening; a crack
- 5. a stream that flows to a larger stream or body of water
- 8. the source of a river
- 9. a deep valley or canyon that was formed by running water but is now dry
- 13. trade; an exchange of goods between different countries or different parts of the same country
- 16. a landslide or mudflow of volcanic debris on the sides of a volcano
- 17. a very fine-grained mud or clay, thought to have formed as the result of grinding by glaciers and to have been deposited by the wind
- 19. Characteristic, the central beliefs, behaviors, and social structures of a group or organization
- 20. an area that has some features in common with other areas, such as landforms or economic activity
- 21. Characteristic, natural features of the land such as climate, landforms, soils, plants, and animals