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Grade 8 General Science Unit 5: Ecosystem and Conservation of Natural Resources

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  1. Grade 8 General Science Unit 5፡ Ecosystem and Interactions
  2. Grade 8 General Science Unit 5: Abiotic and biotic components, food chain and food web
  3. Grade 8 General Science Unit 5: Trophic pyramids, nutrient cycles and energy flow
  4. Grade 8 General Science Unit 5፡ Nitrogen cycle and Oxygen Cycle | የናይትሮጅን እና ኦክሲጅን ኡደት
  5. Grade 8 General Science Unit 5፡ Carbon,Hydrogen and Water Cycles | የካርቦን፥ ሀይድሮጅን እና ውሃ ዑደት
  6. Grade 8 General Science Unit 5፡ Natural Resources; Soil & its Conservation | የተፈጥሮ ሀብት፥ አፈር
  7. Grade 8 General Science Unit 5፡ Impact of water pollution and water conservation | የውሃ ብክለት/ጥበቃ
  8. Grade 8 General Science Unit 5፡ Effect of Air Pollution and Prevention | የከባቢ አየር ብክለት
  9. Grade 8 General Science Unit 5፡ Conservation of Forests and Biodiversity | የደን ጥበቃ እና ብዝሃ ህይወት
  10. Grade 8 General Science Unit 5፡ Biodiversity conservation and Indigenous Knowledge

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