Erasmus ecology crossword puzzle

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Across
  1. 2. – using resources in a way that doesn’t harm the future
  2. 4. warming – the Earth getting hotter
  3. 6. – adjective that refers to something that is not new and has been owned or used by someone else before
  4. 8. – the variety of living things in a place
  5. 12. – good for the environment; synonym of environment-friendly
  6. 13. footprint – how much carbon dioxide someone produces
  7. 14. - unwanted matter or material of any type
  8. 15. resources – things we use from nature (like water, trees, oil)
  9. 16. – the natural home of a plant or animal
  10. 18. – the natural world around us
  11. 19. – chemicals used to kill pests on crops
  12. 20. – dirtying the air, water, or land
Down
  1. 1. – cutting down too many trees
  2. 3. species – animals or plants that may disappear soon
  3. 5. – to collect rubbish in order to treat it and produce useful materials that can be used again
  4. 7. layer – a layer in the sky that protects us from the sun
  5. 9. energy – energy from the sun, wind, or water
  6. 10. – a community of living and non-living things working together
  7. 11. gases – gases that make the Earth warmer
  8. 17. fuels – coal, oil, gas – non-renewable energy sources