Elements of nature

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Across
  1. 1. has a shallow depth
  2. 3. a mixture of gases found on the earth's surface
  3. 4. unwanted residual material after the end of a process
  4. 5. water vapor close to the ground
  5. 6. a steep section of land
  6. 11. things, are subjects who manage nature
  7. 13. streams of water on the surface that are elongated
  8. 14. is a Elements of nature that helps animals, plants and human to survive
  9. 15. is a perennial plant with a long trunk
  10. 16. the earth's crust is composed of minerals and organics
  11. 18. located in the coastal area of ​​the sea
  12. 19. Is a part of nature that giving or support the growth of plants
Down
  1. 2. is a nature events that occurs naturally cause by movement of the earth's crust
  2. 4. is a water that flows from the higher cliff
  3. 7. is an area that is overgrown with trees and plants
  4. 8. a large, deep natural hole
  5. 9. is a condition that changes every time as a important variable in nature
  6. 10. is a monocot plant that has leaves that grow from the base of the stem
  7. 12. is a form of land that stands out above the surrounding area
  8. 17. is a season in which need by living things to their need