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Ch. 20 & 21 Edition

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Ch. 20 & 21 Edition. biome. savanna. desert. tundra. plankton. estuary. Littoral zone. Open-water zone. Deep-water zone. wetland. deciduous. temperate. conifers. canopy. steppes. evergreen trees. prairies. permafrost. Marine. Intertidal zone. Coral reef. Benthic zone.

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Ch. 20 & 21 Edition

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  1. Ch. 20 & 21Edition

  2. biome

  3. savanna

  4. desert

  5. tundra

  6. plankton

  7. estuary

  8. Littoral zone

  9. Open-water zone

  10. Deep-water zone

  11. wetland

  12. deciduous

  13. temperate

  14. conifers

  15. canopy

  16. steppes

  17. evergreen trees

  18. prairies

  19. permafrost

  20. Marine

  21. Intertidal zone

  22. Coral reef

  23. Benthic zone

  24. Sargasso Sea

  25. pollution

  26. Hazardous waste

  27. overpopulation

  28. Renewable resource

  29. Exotic species

  30. Biodiversity *

  31. Non-renewable resource

  32. deforestation

  33. Point source pollution

  34. Recycle

  35. conservation

  36. biodegradable

  37. Endangered species

  38. Alternative energy sources

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