Crossword #15

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Across
  1. 3. a layer of gas above the earth's surface that protects human beings from harmful rays of the sun
  2. 4. to sow seeds by throwing them over a field by hand
  3. 5. animal food
  4. 8. to use
  5. 10. worldwide
  6. 12. to feed on growing plants such as grass
  7. 13. in the language of colonialism, the colonizing power was often referred to as the “mother” country-a sexist reference no longer in use
  8. 15. an economy based in industry, not agriculture
Down
  1. 1. an increase in the world's temperature
  2. 2. new inventions; the science industry
  3. 6. a complete change in something
  4. 7. animal droppings used for fertilization
  5. 9. land held to be used by everyone
  6. 11. a supply of workers
  7. 14. a group of animals distinguished by particular characteristics