Classification of Ecosystems

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Across
  1. 1. a natural saltwater ecosystem with lots of fish and sand
  2. 4. an artificial ecosystem that is smaller than a city
  3. 7. a natural ecosystem with lots of trees, water, and soil
  4. 9. changed by human activity
  5. 10. a natural freshwater ecosystem that is narrow and has lots of fish
  6. 11. a natural ecosystem that is very cold and snowy
Down
  1. 2. an artifical ecosystem with lots of buildings, shops, and people
  2. 3. a natural ecosystem with dry air and lots of sand
  3. 5. unchanged by human activity
  4. 6. a natural ecosystem with lots of grass and very few trees
  5. 8. an artificial ecosystem with grass, benches, fountains, and playgrounds