The zoo debate

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Across
  1. 2. a box or a room for keeping animals in.
  2. 5. the broken parts that are left from and old building or town.
  3. 6. a public discussion about something important.
  4. 7. the world around us (air, land, water, people, animals, buildings)
Down
  1. 1. a person who studies human history through the analysis of physical remains.
  2. 3. a wet mixture that is used in buildings and that becomes hard when it dries.
  3. 4. animals or plants that live and grow freely.