Unit 3 Review (Earth's Resources)

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Across
  1. 4. The warming of the surface and lower atmosphere of Earth that occurs when water vapor, carbon dioxide, and other gases absorb and reradiate thermal energy. (2 words)
  2. 6. A rock with pores. (2 words)
  3. 9. A mixture of gaseous hydrocarbons. (2 words)
  4. 10. Contains ozone gas and other gases. (2 words)
  5. 11. The wise use of and preservation of natural resources.
  6. 13. A type of solar radiation that is harmful to life on earth. (2 words)
  7. 17. An imaginary line about which a body rotates.
  8. 18. Any natural resource that is used by humans such as water, petroleum, minerals, forests, and animals (2 words)
  9. 20. Formed by partially decayed swamp plants that sink to the swamp floor.
  10. 21. Formed when peat is exposed to increased temperature and pressure under sediment.
  11. 22. A natural resource that humans use to generate energy. (2 words)
  12. 24. An organism that can live in extreme environments.
  13. 25. Process of converting CO2, water into oxygen and sugar using solar energy.
  14. 26. The process of separating crude oil into different products such as gasoline, kerosene, and diesel fuel.
  15. 28. Requires oxygen for growth.
Down
  1. 1. A compound made of hydrogen and carbon.
  2. 2. A natural resource that can be replaced at the same rate at which the resource is consumed. (2 words)
  3. 3. Formed when bituminous coal is exposed to increased temperature and pressure under sediment.
  4. 5. Coal formed when lignite is exposed to increased temperature and pressure under sediment.
  5. 7. A solid hydrocarbon compound that is most widely used for generating electrical power.
  6. 8. The energy released by a fission or fusion reaction. (2 words)
  7. 12. A resource that forms at a rate that is much slower than the rate at which the resource is consumed. (2 words)
  8. 14. A mixture of gases that surround a planet moon or space object.
  9. 15. Does not require oxygen for growth.
  10. 16. A nonrenewable energy resource formed from the remains of organisms that lived long ago. (2 words)
  11. 19. The careful and responsible management of a resource.
  12. 23. The process by which a nucleus splits into two or more fragments and releases neutrons and energy. (2 words)
  13. 25. A liquid mixture of complex hydrocarbon compounds.
  14. 27. Product of photosynthesis.