Social Studies Puzzle for Curious Minds

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Across
  1. 4. purest form of water
  2. 6. land on either side of the river bed
  3. 9. smaller streams that join and flow into main river
  4. 13. soil made of clay, sand and silt
  5. 14. harmful substances that contaminate the water body
  6. 15. a desert animal
  7. 17. here the river widens
  8. 18. a use of harvested rainwater
  9. 20. an occupation in the coastal plains
  10. 21. makes the water salty
  11. 23. world’s largest and hottest desert
  12. 25. Northern plains lie to the South of them
  13. 27. coldest desert of India
  14. 28. largest and coldest desert in the world
  15. 30. hot dry areas of land with very little rainfall
  16. 33. largest delta in the world
  17. 35. found on every continent
  18. 36. underground water comes to the surface in the desert
  19. 38. a disease caused by polluted water
  20. 39. river begins its journey at
Down
  1. 1. excellent place for salt production
  2. 2. when water falls down as rain or Snow
  3. 3. natural habitat for aquatic life
  4. 5. the food bowl of India
  5. 7. An important river that flows through the plains
  6. 8. overuse of them in farming contaminates the water.
  7. 10. collecting water that runs off from rooftops
  8. 11. a wetland-shaped like a triangle
  9. 12. largest saltwater lake in the world
  10. 16. marine species ingest or get entangled by them
  11. 19. over use of water has resulted in lowering of it in many regions.
  12. 20. Disrupts when toxins are consumed by small fish, spread to big fish and animals.
  13. 22. flat land next to the sea coast
  14. 24. permanently frozen water
  15. 26. the process where water vapour rises higher and forms clouds
  16. 29. Place where trade happens along the coast
  17. 31. common sight in the desert
  18. 32. 80% of the diseases are _____
  19. 34. waste water from household, toilets, kitchens or from industries
  20. 37. a type of water source