Water Resources and Water Pollution

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Across
  1. 4. This is the type of sludge formed in the secondary settling tank being recycled in a sewage treatment facility that contains anaerobic microorganisms
  2. 6. It is the boundary between the aeration and the saturation zones
  3. 8. _____ flooding that is caused by pavements and lack of drainage coupled with heavy downpour of rain
  4. 9. It is the process of cleaning wastewater by chemical (chlorine, ozone) or optical (UV light, laser) treatment to kill live microorganism present in the water
  5. 10. _____ water is the water used to produce food and other products
Down
  1. 1. _____ Dam and Reservoir is a dam found in Quezon City that supplies water to Manila Water customers
  2. 2. Freshwater _____ occurs when the demand for water exceeds the volumetric availability during a certain period in combination with poor water quality and lack of accessibility
  3. 3. _____ pollution is a type of water pollution that is composed of wastes generated by human such as plastics
  4. 5. _____ irrigation is a method of irrigation that uses sprayers and atomizers that rotates in a circular motion
  5. 7. It is the increased growth of water surface living organisms (algae and water lilies) because of excessive nutrients in the water that causes death to aquatic organisms due to lack of dissolved oxygen