QUIZ ON CHAPTER: WASTE WATER STORY

Which of the following is waste water?

• (a) Water trickling from a damaged tap.

• (b) Water coming out of a shower

• (c) Water coming out of a laundry

• Water flowing in a river.

• All of the above

Sewage is mainly a

• liquid waste.

• solid waste.

• gaseous waste.

• mixture of solid and gas.

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

• Biogas

• Sludge

• Aerator

• Both biogas and sludge

An open-drain system is a breeding place for which of the following.

• Flies

• Mosquitoes

• Organisms which cause diseases

• All of these

Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a waterborne disease?

• Cholera

• Typhoid

• Asthma

• Dysentry

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

• sewers

• sewerage

• transport system.

• treatment plant.

Which of the following is not a source of wastewater?

• Sewers

• Homes

• Industries

• Hospitals

State whether the following statement are True or False.

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

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

Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.