Across
- 2. The study of earth
- 5. still in existence surviving species
- 7. a solid inorganic material found in nature
- 8. cycle heat cools and changes over time
- 9. group of animals that occupy a certain area
- 10. form when molten rock crystallizes and solidifies. apperes glossy
Down
- 1. fuel petroleum, natural gas, coal, made from remains of plants and animals
- 3. no longer in existence
- 4. forms under extreme heat and pressure
- 6. water water held underground in the soil in deep reservoirs