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प्रश्न
Three statements are provided here which define the terms –
- sludge
- sewage and
- wastewater.
Pick out the correct definition for each of these terms.
- The settled solids are removed in wastewater treatment with a scraper.
- Water from the kitchen is used for washing dishes.
- Wastewater is released from homes, industries, hospitals and other public buildings.
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उत्तर
- The settled solids that are removed in wastewater treatment with a scraper – sludge
- Water from kitchen used for washing dishes – wastewater
- Wastewater released from homes, industries, hospitals and other public buildings – sewage.
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