Ch 1. and Ch 3. Crossword

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Across
  1. 2. the process by which heat or electricity is directly transmitted
  2. 3. the upper layer of the earth's mantle
  3. 6. effect the trapping of the sun's warmth
  4. 10. the variety of life in a particular habitat or ecosystem
  5. 11. regions of matter that make up the earth
  6. 13. the envelope of gases surrounding the earth
  7. 16. plates the two-sub layers of the earth's crust that move
  8. 19. deals with the relations of organisms
Down
  1. 1. the lowest region of the atmosphere
  2. 4. the layer of the earth's atmosphere
  3. 5. practice of farming
  4. 7. resource materials or substances such as minerals,forests,and water
  5. 8. destruction
  6. 9. the rigid outer part of the earth
  7. 12. the emission of electromagnetic waves
  8. 14. interior of the earth between the core
  9. 15. a substance that is harmful that goes into the environment
  10. 17. outermost layer of a planet
  11. 18. the central region of the earth