Ecology for Kids

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Across
  1. 2. lots of different kinds
  2. 4. invisible rays of energy
  3. 7. make a difference to
  4. 10. natural homes
Down
  1. 1. a group of the same kinds of organisms
  2. 3. not allowed
  3. 5. marks that something exists
  4. 6. living things
  5. 8. without stopping
  6. 9. a very big space