मराठी

Sewage is mainly a - Science

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प्रश्न

Sewage is mainly a

पर्याय

  • liquid waste

  • solid waste

  • gaseous waste

  • mixture of solid and gas

MCQ
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उत्तर

liquid waste

Explanation:

Sewage is a wastewater that includes domestic or industrial liquid wastes. It contains various dissolved and suspended impurities.

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Wastewater Treatment Plant (WWTP)
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 18: Wastewater Story - MULTIPLE CHOICE QUESTIONS [पृष्ठ ९३]

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एनसीईआरटी एक्झांप्लर Science [English] Class 7
पाठ 18 Wastewater Story
MULTIPLE CHOICE QUESTIONS | Q 2. | पृष्ठ ९३

संबंधित प्रश्‍न

Drains get blocked by ______ and ______.


Name two chemicals used to disinfect water.


Explain the function of bar screens in a wastewater treatment plant.


Which of the following is/are products of wastewater treatment?


The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as


Which of the following is not a source of waste water?


State whether the following statement is True or False. In case a statement is false, write the correct statement.

Sewage is a solid waste which causes water pollution and soil pollution


State whether the following statement is True or False. In case a statement is false, write the correct statement.

Wastewater could be reused


State whether the following statement is True or False. In case a statement is false, write the correct statement.

Where underground sewerage systems and refuse disposal systems are not available, the high cost on-site sanitation system can be adopted


Given below is a jumbled sequence of the processes involved in a wastewater treatment plant. Arrange them in their correct sequence.

  1. Sludge is scraped out and skimmer removes the floating grease. 
  2. Water is made to settle in a large tank with a slope in the middle.
  3. Large objects like plastic bags are removed by passing wastewater through bar screens.
  4. Sand, grit and pebbles are made to settle by decreasing the speed of incoming wastewater.
  5. Wastewater enters a grit and sand removal tank.

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