Across
- 2. gas that cause green hous
- 5. process by which soil, rock, or other surface material is gradually worn away and removed from one location to another by natural forces such as water
- 8. what happens if trees are cut down
- 10. large waves of water hitting the land as happened in Aceh
- 14. process of erosion by river water
- 15. gempa bumi
- 17. Daur ulang
- 18. mengurangi pemakaian
- 19. synonym of ecosystem
- 20. water flow from upstream to downstream
Down
- 1. air for breathing
- 3. replanting trees
- 4. community of living organisms interacting with each other
- 6. energy source used by solar panels
- 7. the process of biological decomposition of organic matter
- 9. pemandangan in english
- 11. sampah in english
- 12. gunakan kembali
- 13. antonym of reforestation
- 16. type of soil frequently used for pottery