Question 11
Here is a crossword puzzle: Good luck!
Across
3. Liquid waste products
4. Solid waste extracted in sewage treatment
6. A word related to hygiene
8. Waste matter discharged from human body
Down
1. Used water
2. A pipe carrying sewage
5. Micro-organisms which causes cholera
7. A chemical to disinfect water
Question 11
Here is a crossword puzzle: Good luck!
Across
3. Liquid waste products
4. Solid waste extracted in sewage treatment
6. A word related to hygiene
8. Waste matter discharged from human body
Down
1. Used water
2. A pipe carrying sewage
5. Micro-organisms which causes cholera
7. A chemical to disinfect water
Across
3. Liquid waste products: Sewage
Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc.
4. Solid waste extracted in sewage treatment: Sludge
Sludge is semi-solids such as faeces that settle down during wastewater treatment is called sludge.
6. A word related to hygiene: Sanitation
Sanitation includes complete cleanliness which includes cleaning dirt and removal of germs and bacteria to keep the surroundings clean.
8. Waste matter discharged from the human body: Excreta
Excreta is waste matter discharged from the body, especially faeces and urine.
Down
1. Used water: Wastewater
Wastewater is the polluted form of water generated from rainwater runoff and human activities.
2. A pipe carrying sewage: Sewer
Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc. The pipe carrying sewage is called sewer.
5. Micro-organisms which causes cholera: Bacteria
Cholera is an infectious disease that causes severe watery diarrhoea, which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholera.
7. A chemical to disinfect water: Ozone
Ozone is a powerful oxidant, stronger than chlorine. Ozone is used to disinfect, deodorize, decolourize and decompose organic substances in water.
Across
3. Liquid waste products: Sewage
Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc.
4. Solid waste extracted in sewage treatment: Sludge
Sludge is semi-solids such as faeces that settle down during wastewater treatment is called sludge.
6. A word related to hygiene: Sanitation
Sanitation includes complete cleanliness which includes cleaning dirt and removal of germs and bacteria to keep the surroundings clean.
8. Waste matter discharged from the human body: Excreta
Excreta is waste matter discharged from the body, especially faeces and urine.
Down
1. Used water: Wastewater
Wastewater is the polluted form of water generated from rainwater runoff and human activities.
2. A pipe carrying sewage: Sewer
Sewage is the wastewater containing both liquid and solid wastes produced by human activities from homes, industries, hospitals, offices, etc. The pipe carrying sewage is called sewer.
5. Micro-organisms which causes cholera: Bacteria
Cholera is an infectious disease that causes severe watery diarrhoea, which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholera.
7. A chemical to disinfect water: Ozone
Ozone is a powerful oxidant, stronger than chlorine. Ozone is used to disinfect, deodorize, decolourize and decompose organic substances in water.
