Hanjia's Crossword puzzle

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Across
  1. 5. A sustainable way of using a pipe or passage to carry water from a distance
  2. 6. A creative invention used by some Indigenous civilizations of North America to propel a spear or dart
  3. 7. Area classified according to the species that live in that enviornment
  4. 9. Lived in a civilization called the Machu-Piccu
  5. 10. A sustainable mesoamerican method of agriculture and territorial expansion
Down
  1. 1. The scientific study of material remains of past civilizations
  2. 2. A change in weather where there is abnormally low rainfall, leading to a shortage of water
  3. 3. Diverse civilizations that shared similar cultural characteristics to the modern-day countries of Mexico, Costa Rica, etc.
  4. 4. A step-like landform that consists of flat or gently sloping land for cultivation in a civilization
  5. 8. A civilization built in a mountain environment by the Inca