Social Studies

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Across
  1. 4. describes the numbers of different animals and plants living in an environment
  2. 5. are crops that are sold for profit.
  3. 7. large farm
Down
  1. 1. planting of young trees in areas that have been stripped of forests.
  2. 2. lowers trade barriers between the countries
  3. 3. a member of a small defensive force of irregular soldiers
  4. 6. helped ensure the foreigners’ economic success