Wastewater Story MCQ Class 7

Q: What is wastewater?

Any water that has been used and is no longer clean.

Q: What is sewage?

Wastewater from homes, industries, and hospitals, including rainwater runoff.

Q: How is wastewater treated?

Through physical, chemical, and biological processes at a treatment plant.

Q: What are the byproducts of wastewater treatment?

Sludge (solid waste) and biogas (gas produced during treatment).

Q: Why is it important to treat wastewater?

To protect human health and the environment.

Question 1

Question 1: Which of the following is the most significant contributor to the increasing scarcity of freshwater?

A. Excessive rainfallB. Population growth C. Sustainable farming practicesD. Decreased industrial activity

Answer

B. Population growth. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 2

Question 2: What is the primary reason for cleaning wastewater?

A. To prevent it from being wastedB. To make it suitable for drinkingC. To remove pollutants D. To conserve water resources

Answer

C. To remove pollutants. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 3

Question 3: Why is clean water considered a basic need for human beings?

A. It is essential for survival and hygiene. B. It is used in various industries.C. It is a source of entertainment.D. It is a symbol of social status.

Answer

A. It is essential for survival and hygiene. Clean water is directly linked to our basic needs of drinking, sanitation, and health. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 4

Question 4: What was the goal of the United Nations’ “Water for Life” decade (2005-2015)?

A. To provide clean water to everyone on Earth.B. To reduce the number of people without safe drinking water by half. C. To promote the use of bottled water.D. To increase the production of desalinated water.

Answer

B. To reduce the number of people without safe drinking water by half. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 5

Question 5: Which of the following is NOT a major cause of freshwater scarcity?

A. Population growthB. PollutionC. Reforestation D. Industrial development

Answer

C. Reforestation. While the other options contribute to water scarcity, reforestation generally helps improve water retention and quality. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 6

Question 6: What is the term for water that is suitable for human use?

A. Potable water B. GreywaterC. BlackwaterD. Distilled water

Answer

A. Potable water. Potable water is the term for water that is safe for human consumption and use. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 7

Question 7: Which of the following is NOT a common human activity that generates wastewater?

A. BathingB. Photosynthesis C. LaundryD. Cooking

Answer

B. Photosynthesis. Photosynthesis is a plant process and does not generate wastewater. The other options are common household activities that contribute to wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 8

Question 8: What is the primary source of water pollution in many developing countries?

A. Industrial dischargeB. Agricultural runoffC. Untreated human waste D. Oil spills

Answer

C. Untreated human waste. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 9

Question 9: What is the purpose of the “bar screens” in a wastewater treatment plant?

A. To disinfect the waterB. To remove large objects C. To aerate the waterD. To filter out sand and grit

Answer

B. To remove large objects. Bar screens are the first step in wastewater treatment and are designed to remove large debris. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 10

Question 10: What is the primary goal of wastewater treatment?

A. To make wastewater safe for drinkingB. To remove pollutants before it enters a water body C. To reduce the volume of wastewaterD. To generate electricity from wastewater

Answer

B. To remove pollutants before it enters a water body. The main purpose of wastewater treatment is to reduce pollution. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 11

Question 11: What is the main cause of waterborne diseases?

A. Heavy rainfallB. Industrial wasteC. Poor sanitation and contaminated water D. Agricultural runoff

Answer

C. Poor sanitation and contaminated water. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 12

Question 12: Which of the following is NOT a common waterborne disease?

A. CholeraB. TyphoidC. Malaria D. Dysentery

Answer

C. Malaria. Malaria is a mosquito-borne disease, not a waterborne disease. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 13

Question 13: What is the term for wastewater that is released from homes and industries?

A. Sewage B. SludgeC. EffluentD. Leachate

Answer

A. Sewage. Sewage is the term for wastewater generated by households, businesses, and industries. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 14

Question 14: What is the main purpose of a septic tank?

A. To store wastewaterB. To treat wastewater on-site C. To generate electricity from wastewaterD. To disinfect wastewater

Answer

B. To treat wastewater on-site. Septic tanks are a self-contained system for treating wastewater, commonly used in areas without a centralized sewer system. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 15

Question 15: What is the name of the Indian government’s mission to improve sanitation and sewage disposal?

A. Swachh Bharat B. Clean IndiaC. Green IndiaD. Healthy India

Answer

A. Swachh Bharat. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 16

Question 16: What is the primary component of sewage?

A. Water B. Human wasteC. Industrial chemicalsD. Food scraps

Answer

A. Water. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 17

Question 17: Which of the following is NOT a common source of sewage?

A. HomesB. IndustriesC. Forests D. Hospitals

Answer

C. Forests. Forests do not typically generate sewage. Sewage is a byproduct of human activities and infrastructure. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 18

Question 18: What is the term for the wastewater that originates from kitchens and bathrooms?

A. Sullage B. SewageC. EffluentD. Greywater

Answer

D. Greywater. Greywater is the term for wastewater from non-toilet sources, such as sinks, showers, and laundry. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 19

Question 19: Which of the following is NOT a common impurity found in sewage?

A. PlasticsB. Food wasteC. BacteriaD. Heavy metals

Answer

A. Plastics. While plastics can end up in sewage, they are not a natural impurity. The other options are common components of sewage. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 20

Question 20: What is the term for the wastewater that originates from toilets?

A. Blackwater B. SullageC. GreywaterD. Sewage

Answer

A. Blackwater. Blackwater is the term for wastewater from toilets, containing human waste. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 21

Question 21: Which of the following is a common cause of sewage contamination?

A. Industrial dischargeB. Agricultural runoffC. Open defecationD. All of the above

Answer

D. All of the above. All the options listed can contribute to sewage contamination. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 22

Question 22: What is the primary concern associated with sewage contamination?

A. The spread of diseasesB. Damage to infrastructureC. Loss of aquatic lifeD. Depletion of oxygen in water bodies

Answer

A. The spread of diseases. Sewage contamination poses a significant risk to public health due to the presence of disease-causing organisms. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 23

Question 23: Which of the following is NOT a common method for sewage disposal?

A. Discharge into water bodiesB. Land applicationC. Incineration D. Septic systems

Answer

C. Incineration. Incineration is not a typical method for sewage disposal. The other options are common approaches to managing sewage. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 24

Question 24: What is the term for the process of treating wastewater to remove impurities?

A. Sewage treatment B. Water filtrationC. DisinfectionD. Sterilization

Answer

A. Sewage treatment. Sewage treatment is the process of removing contaminants from wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 25

Question 25: What is the primary purpose of a manhole in a sewage system?

A. To allow access for maintenance B. To prevent blockagesC. To vent sewer gasesD. To collect rainwater

Answer

A. To allow access for maintenance. Manholes provide access points for inspection and cleaning of the sewage system. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 26

Question 26: What is the term for the network of pipes that carries sewage?

A. Sewerage B. PlumbingC. Water mainsD. Drainage

Answer

A. Sewerage. Sewerage refers to the system of pipes and infrastructure designed to transport wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 27

Question 27: What is the main function of a sewer?

A. To bring clean water into buildingsB. To take away wastewater from buildings C. To store rainwaterD. To distribute treated water

Answer

B. To take away wastewater from buildings. Sewers are designed to carry wastewater away from homes and other buildings. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 28

Question 28: What is the term for the process of removing solid waste from sewage?

A. Sedimentation B. FiltrationC. AerationD. Disinfection

Answer

A. Sedimentation. Sedimentation is the process of allowing solid particles to settle out of wastewater by gravity. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 29

Question 29: What is the purpose of aeration in wastewater treatment?

A. To remove large objectsB. To help aerobic bacteria grow C. To disinfect the waterD. To remove sand and grit

Answer

B. To help aerobic bacteria grow. Aeration provides oxygen to the wastewater, promoting the growth of aerobic bacteria that break down organic matter. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 30

Question 30: What is the term for the solid material that settles out of wastewater during treatment?

A. Sludge B. ScumC. SedimentD. Debris

Answer

A. Sludge. Sludge is the term for the semi-solid waste product that is removed during wastewater treatment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 31

Question 31: What is activated sludge?

A. Sludge that has been dried and used as fertilizerB. Sludge that is still in the process of settlingC. Sludge that has been treated and is safe for disposalD. Sludge that contains aerobic bacteria

Answer

D. Sludge that contains aerobic bacteria. Activated sludge is rich in aerobic bacteria that help break down organic pollutants. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 32

Question 32: What is the primary function of aerobic bacteria in wastewater treatment?

A. To disinfect the waterB. To break down organic matter C. To remove heavy metalsD. To neutralize pH

Answer

B. To break down organic matter. Aerobic bacteria play a crucial role in decomposing organic pollutants in wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 33

Question 33: Which of the following is NOT a common method for disposing of treated wastewater?

A. Discharge into a riverB. Discharge into the seaC. Evaporation D. Groundwater recharge

Answer

C. Evaporation. While evaporation can occur naturally, it is not a controlled method for disposing of treated wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 34

Question 34: What is the purpose of disinfecting treated wastewater?

A. To remove large objectsB. To improve the taste and odorC. To kill any remaining harmful organisms D. To make it suitable for irrigation

Answer

C. To kill any remaining harmful organisms. Disinfection is the final step in wastewater treatment to ensure the water is safe for discharge. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 35

Question 35: Which of the following is NOT a common method for disinfecting treated wastewater?

A. ChlorinationB. OzonationC. Boiling D. Ultraviolet radiation

Answer

C. Boiling. While boiling can disinfect water, it is not typically used for large-scale wastewater disinfection. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 36

Question 36: What is the primary purpose of a wastewater treatment plant?

A. To generate electricity from wastewaterB. To remove pollutants from wastewater C. To store wastewaterD. To distribute clean water

Answer

B. To remove pollutants from wastewater. Wastewater treatment plants are designed to clean wastewater before it is discharged. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 37

Question 37: Which of the following is NOT a stage in wastewater treatment?

A. Primary treatmentB. Secondary treatmentC. Tertiary treatmentD. Quaternary treatment

Answer

D. Quaternary treatment. Wastewater treatment typically involves primary, secondary, and sometimes tertiary treatment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 38

Question 38: What is the purpose of primary treatment in wastewater treatment?

A. To remove large objects and grit B. To break down organic matterC. To disinfect the waterD. To remove nutrients

Answer

A. To remove large objects and grit. Primary treatment focuses on the physical removal of solid waste. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 39

Question 39: What is the purpose of secondary treatment in wastewater treatment?

A. To remove large objects and gritB. To break down organic matter C. To disinfect the waterD. To remove nutrients

Answer

B. To break down organic matter. Secondary treatment uses biological processes to decompose organic pollutants. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 40

Question 40: What is the purpose of tertiary treatment in wastewater treatment?

A. To remove large objects and gritB. To break down organic matterC. To disinfect the waterD. To remove nutrients

Answer

D. To remove nutrients. Tertiary treatment is an additional step to remove remaining pollutants, such as nitrogen and phosphorus. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 41

Question 41: What is the term for the process of removing solid waste from wastewater by gravity?

A. Sedimentation B. FiltrationC. AerationD. Disinfection

Answer

A. Sedimentation. Sedimentation is a key process in primary treatment to remove settleable solids. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 42

Question 42: What is the purpose of a grit chamber in wastewater treatment?

A. To remove large objectsB. To remove sand and grit C. To aerate the waterD. To disinfect the water

Answer

B. To remove sand and grit. Grit chambers are designed to slow down the flow of wastewater, allowing heavier particles like sand and grit to settle out. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 43

Question 43: What is the purpose of a sedimentation tank in wastewater treatment?

A. To remove large objectsB. To remove sand and gritC. To allow solid waste to settle out D. To aerate the water

Answer

C. To allow solid waste to settle out. Sedimentation tanks provide a calm environment for solid particles to settle to the bottom. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 44

Question 44: What is the term for the process of introducing air into wastewater?

A. Aeration B. FiltrationC. SedimentationD. Disinfection

Answer

A. Aeration. Aeration is the process of adding oxygen to wastewater, which is essential for the growth of aerobic bacteria. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 45

Question 45: What is the purpose of an aeration tank in wastewater treatment?

A. To remove large objectsB. To remove sand and gritC. To allow solid waste to settle outD. To promote the growth of aerobic bacteria

Answer

D. To promote the growth of aerobic bacteria. Aeration tanks provide the oxygen necessary for aerobic bacteria to thrive and break down organic matter. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 46

Question 46: What is the term for the microorganisms that break down organic matter in wastewater?

A. Bacteria B. VirusesC. ProtozoaD. Algae

Answer

A. Bacteria. Bacteria, specifically aerobic bacteria, play a crucial role in the biological treatment of wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 47

Question 47: What is the term for the process of removing dissolved organic matter from wastewater?

A. Biological treatment B. Physical treatmentC. Chemical treatmentD. Tertiary treatment

Answer

A. Biological treatment. Biological treatment utilizes microorganisms to decompose organic pollutants. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 48

Question 48: What is the term for the solid material that is removed from wastewater during secondary treatment?

A. Activated sludge B. Primary sludgeC. ScumD. Sediment

Answer

A. Activated sludge. Activated sludge is the biomass of microorganisms that is produced during secondary treatment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 49

Question 49: What is the purpose of a secondary clarifier in wastewater treatment?

A. To remove large objectsB. To remove sand and gritC. To allow activated sludge to settle out D. To aerate the water

Answer

C. To allow activated sludge to settle out. Secondary clarifiers provide a calm environment for the activated sludge to separate from the treated wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 50

Question 50: What is the term for the process of removing remaining pollutants from wastewater after secondary treatment?

A. Tertiary treatment B. Quaternary treatmentC. Advanced treatmentD. Polishing treatment

Answer

A. Tertiary treatment. Tertiary treatment is an optional step to further improve the quality of treated wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 51

Question 51: Which of the following is NOT a common method used in tertiary treatment?

A. FiltrationB. DisinfectionC. Nutrient removalD. Aeration

Answer

D. Aeration. Aeration is primarily used in secondary treatment, not tertiary treatment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 52

Question 52: What is the purpose of disinfection in wastewater treatment?

A. To remove large objectsB. To remove sand and gritC. To kill harmful microorganisms D. To remove nutrients

Answer

C. To kill harmful microorganisms. Disinfection is the final step in wastewater treatment to eliminate any remaining pathogens. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 53

Question 53: Which of the following is NOT a common method for disinfecting wastewater?

A. ChlorinationB. OzonationC. Sedimentation D. Ultraviolet radiation

Answer

C. Sedimentation. Sedimentation is used to remove solid waste, not to disinfect wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 54

Question 54: What is the term for the treated wastewater that is discharged from a wastewater treatment plant?

A. Effluent B. InfluentC. SludgeD. Scum

Answer

A. Effluent. Effluent is the term for the treated wastewater that is released back into the environment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 55

Question 55: What is the purpose of sludge treatment in wastewater treatment?

A. To remove large objectsB. To remove sand and gritC. To stabilize and reduce the volume of sludge D. To disinfect the water

Answer

C. To stabilize and reduce the volume of sludge. Sludge treatment involves processes to make the sludge safe for disposal or reuse. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 56

Question 56: What is the main source of wastewater in households?

A. Kitchens and bathrooms B. GardensC. GaragesD. Basements

Answer

A. Kitchens and bathrooms. Most household wastewater originates from activities like showering, washing dishes, and laundry. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 57

Question 57: Which of the following is NOT a good housekeeping practice to reduce wastewater?

A. Fixing leaky faucetsB. Taking shorter showersC. Disposing of cooking oil down the drain D. Using water-efficient appliances

Answer

C. Disposing of cooking oil down the drain. Cooking oil and grease can solidify in pipes, causing blockages and contributing to sewer problems. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 58

Question 58: What is the main reason for avoiding open drains?

A. They can be breeding grounds for insects B. They can attract stray animalsC. They can cause floodingD. They can reduce property values

Answer

A. They can be breeding grounds for insects. Open drains can provide a habitat for disease-carrying insects, posing a health risk. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 59

Question 59: What is the main concern associated with throwing chemicals down the drain?

A. They can damage plumbingB. They can contaminate water bodies C. They can cause unpleasant odorsD. They can increase water bills

Answer

B. They can contaminate water bodies. Chemicals disposed of down the drain can end up in rivers and lakes, harming aquatic life and potentially affecting drinking water sources. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 60

Question 60: What is the main benefit of using water-efficient appliances?

A. They reduce water billsB. They conserve water resources C. They reduce energy consumptionD. All of the above

Answer

D. All of the above. Water-efficient appliances help save money, conserve water, and reduce environmental impact. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 61

Question 61: What is the main purpose of the “Swachh Bharat” mission?

A. To promote industrial developmentB. To improve sanitation and sewage disposal C. To conserve water resourcesD. To reduce air pollution

Answer

B. To improve sanitation and sewage disposal. The “Swachh Bharat” mission aims to address sanitation challenges and improve public health in India. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 62

Question 62: Which of the following is NOT a good practice for managing wastewater in public places?

A. Providing adequate toilet facilitiesB. Ensuring proper disposal of wasteC. Encouraging open defecation D. Maintaining clean and hygienic conditions

Answer

C. Encouraging open defecation. Open defecation is a major public health hazard and should be discouraged. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 63

Question 63: What is the main reason for maintaining proper sanitation in public places?

A. To prevent the spread of diseases B. To improve the aesthetic appeal of the areaC. To attract touristsD. To increase property values

Answer

A. To prevent the spread of diseases. Proper sanitation in public places is crucial to minimize the risk of disease outbreaks. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Question 64

Question 64: Which of the following is NOT a common method for managing wastewater in public places?

A. Public toiletsB. Septic tanksC. Wastewater treatment plantsD. Open defecation

Answer

D. Open defecation. Open defecation is an unsanitary practice and not an appropriate method for managing wastewater. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Maintaining sanitation in public places requires public awareness, adequate facilities, and proper enforcement of regulations. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Individuals can contribute to public sanitation by being responsible for their waste and reporting any issues. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

B. To prevent pollution and protect aquatic life. Wastewater treatment is essential to remove pollutants that can harm the environment and human health. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

C. Increased water scarcity. Proper wastewater management helps conserve water resources and reduce scarcity. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

B. To minimize environmental impact. Sustainable wastewater management aims to protect the environment and ensure the long-term availability of water resources. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Maximize water consumption. Sustainable wastewater management emphasizes water conservation and responsible use. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Implementing sustainable wastewater management requires financial investment, technological solutions, and political support. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Education plays a crucial role in informing the public about the importance of sustainable wastewater management. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. It reduces the demand for freshwater resources. Reusing treated wastewater helps conserve water and reduce pressure on freshwater sources. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

C. Drinking water. While treated wastewater can be used for various purposes, it is generally not suitable for drinking without further advanced treatment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Reusing treated wastewater requires addressing public concerns, investing in infrastructure, and ensuring the safety of the reclaimed water. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. Poor sanitation and contaminated water. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Malaria. Malaria is a mosquito-borne disease, not a waterborne disease. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. Open defecation. Open defecation is the practice of defecating outdoors, often in fields, forests, or water bodies. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. It can contaminate water sources. Open defecation can lead to the contamination of groundwater and surface water, spreading diseases. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. Groundwater. Groundwater is particularly susceptible to contamination from open defecation and poorly managed sanitation systems. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Asthma. Asthma is a respiratory condition not directly linked to poor sanitation. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Poor sanitation has a wide range of negative impacts on communities, including health, economic, and social consequences. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

B. To improve hygiene and prevent diseases. Sanitation programs aim to improve public health by promoting safe sanitation practices. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Open drains. Open drains are a sanitation hazard and not a proper sanitation facility. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Composting toilets offer several advantages, including water conservation, waste recycling, and reduced reliance on traditional sewage systems. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Open defecation. Open defecation is an unsanitary practice and not an appropriate alternative for sewage disposal. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. It is a low-cost option for sewage disposal. Septic tanks are a cost-effective solution for on-site sewage treatment, especially in areas without a centralized sewer system. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

C. To store human waste. Chemical toilets use chemicals to break down and deodorize waste, but they primarily serve as a storage unit. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. It produces compost that can be used as fertilizer. Composting pits convert human waste into valuable compost, promoting sustainable waste management. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Availability of electricity. While some alternative systems may require electricity, it is not a universal factor in the selection process. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Private residences. While sanitation is important in private homes, the focus of this section is on public spaces. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

A. To prevent the spread of diseases. Public places with poor sanitation can become breeding grounds for diseases, posing a risk to public health. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. Excessive use of water. While water conservation is important, the primary concern in public sanitation is proper waste management and hygiene. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. The government plays a crucial role in establishing and enforcing sanitation standards in public spaces. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Enforcing sanitation standards requires public cooperation, adequate resources, and strong political commitment. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Individuals can contribute to public sanitation by being responsible for their waste and using public facilities appropriately. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

B. Littering. Littering is a major contributor to poor sanitation and should be avoided. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Good sanitation in public places has multiple benefits, including improved public health, a positive image, and increased tourism. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Achieving universal sanitation requires addressing various challenges, including public awareness, infrastructure development, and resource allocation. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Accepted Answer

D. All of the above. Technology can play a significant role in improving sanitation through innovative solutions, monitoring systems, and educational tools. (Wastewater Story MCQ Class 7 by Top100MCQ.com)

Table of Contents

WATER, OUR LIFELINE

WHAT IS SEWAGE?

WATER FRESHENS UP – AN EVENTFUL JOURNEY

WASTEWATER TREATMENT PLANT (WWTP)

BETTER HOUSEKEEPING PRACTICES

SANITATION AND DISEASE

ALTERNATIVE ARRANGEMENT FOR SEWAGE DISPOSAL

SANITATION AT PUBLIC PLACES

Most Asked Important Questions on Wastewater Story

What is wastewater?

What is sewage?

How is wastewater treated?

What are the byproducts of wastewater treatment?

Why is it important to treat wastewater?

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