Across
- 2. warming increase in average temperatures
- 6. igneaous rock composed
- 8. any one of numerous minerals that have oxygen
- 13. resource takes millions of years to form
- 14. mas per unit volume of substance
- 15. when sediments are squeezed together
- 19. water that flows over the land
- 20. magma that reaches earth surface
Down
- 1. fuel general term for any hydrocarbon
- 3. color of mineral in powdered form
- 4. appearance or quality of light reflected
- 5. collecting and proceccess
- 7. solidfication of sediments by the depostion of
- 9. partly decomposed organic material that is used as
- 10. careful use of resoucred
- 11. agent of erosion loses energy
- 12. disintegration and secompostion of rock at or near earth surface
- 15. sedimentary rock sedimentary rock
- 16. A naturally occurring inorganic crystaline
- 17. material from ehich a useful mineral or minerals can be mined
- 18. atom or molecule that possesses an electrial