Environmental Science - Variety 1

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Across
  1. 2. several food chains joined together
  2. 4. - sphere for living things
  3. 6. an educated guess
  4. 8. step in the water cycle where waters becomes water vapor
  5. 9. step in nitrogen cycle where NO2 becomes NO3
  6. 14. lving things that makes its own food e.g. plant
  7. 15. the variety of living things
  8. 17. process by which plants make food using light energy
  9. 20. when all members of a species dies
  10. 21. organisms that can interbreed and produce fertile offspring are call this
  11. 22. fossil fuels are considered this type of energy
  12. 24. ultimate energy source
  13. 25. plants store energy as this compound
  14. 27. garbage in places it is not supposed to be
  15. 28. animal that attacks prey or other animal
Down
  1. 1. a trait that helps an organism to better survive
  2. 3. animals that eat plants
  3. 5. the relationship between organisms where both benefit
  4. 7. rain, snow, hail
  5. 10. taking more organisms for food than is needed
  6. 11. a way to remember the 5 biggest threats to biodiversity
  7. 12. chopping down too many trees in one area
  8. 13. the number one reason for decrease in biodiversity caused by humans
  9. 16. bacteria and fungi that cause decay
  10. 18. a non-native species - may or maynot cause harm
  11. 19. when a natural resource can replenish itself for the long term we say it is...
  12. 23. animals that eat both plants and animals
  13. 26. non-living