What is the main use of Potash Alum in water purification?
Potash Alum is primarily used in water purification to coagulate and remove dissolved physical and chemical substances.
What is the role of Liquid Chlorine in a water cleaning plant?
Liquid Chlorine is used in water cleaning plants to disinfect water by killing harmful microorganisms.
Which method is used to clean water by sticking impurities together to form large particles?
Coagulation is the method used to clean water by sticking impurities together to form larger particles that can be easily removed.
What is the process called when water seeps into the ground?
Infiltration is the process by which water seeps into the ground.
Which method is used in water cleaning plants to make sand particles and pesticides stick together?
Coagulation is the method used to make sand particles and pesticides stick together in water cleaning plants.
Seaweed is a good source of which important mineral?
Seaweed is a good source of iodine, an important mineral for thyroid function.
What is the chemical formula of water?
The chemical formula of water is H₂O.
What percentage of Earth’s surface water is freshwater?
Approximately 3% of Earth’s surface water is freshwater.
Which type of water covers 97% of Earth’s surface water?
Saltwater covers approximately 97% of Earth’s surface water.
What is the most abundant natural source essential for life?
Water is the most abundant natural source essential for life.
Which process in plants depends directly on water?
Photosynthesis is the process in plants that depends directly on water.
Which method is used at the domestic level for cleaning water?
Boiling is a common method used at the domestic level for cleaning water.
What substance can be added to water at home to help settle impurities?
Potash alum can be added to water at home to help settle impurities.
What is a common commercial method for purifying water in Pakistan?
Chlorination is a common commercial method for purifying water in Pakistan.
What is the name of a water purification plant in Tharparkar?
An RO Filtration Plant is a water purification plant in Tharparkar.
Which industry in Pakistan uses water for cooling heavy machinery?
Nuclear reactors use water for cooling heavy machinery.
Which method is NOT used commercially to clean water?
Boiling is not typically used commercially to clean water on a large scale.
Which one is a property of clean water?
Clean water is typically colourless, odourless, and germ-free.
Which of the following is a natural source of water?
A glacier is a natural source of water.
Which of these is an artificial source of water?
A tube well is an artificial source of water.
Which of the following is a major source of water pollution from agriculture?
Pesticides and fertilizers are major sources of water pollution from agriculture.
Which of the following impurities are found in untreated industrial water?
Untreated industrial water often contains harmful chemicals as impurities.
What kind of disease is caused by water containing microorganisms?
Water containing microorganisms can cause waterborne diseases.
What does DDT stand for in water pollution context?
DDT stands for Dichloro-diphenyl Trichloroethane, a chemical known for its environmental impact.
Which of the following is NOT a waterborne disease?
Asthma is not a waterborne disease.
Which of the following methods kills microbes in water by using heat?
Boiling is a method that kills microbes in water by using heat.
What is the function of potash alum in water cleaning?
Potash alum is used to stick impurities together in water cleaning.
Which water cleaning method uses UV and RO technology?
Water purifiers often use UV and RO technology to clean water.
What is the role of water purification tablets like NaDCC?
Water purification tablets like NaDCC are used to deactivate bacteria and viruses.
What does a filtration system with bio-film remove?
A filtration system with bio-film removes biological impurities from water.
Which method removes suspended sand particles from water?
Filtration is the method used to remove suspended sand particles from water.
What does RO in water purifiers stand for?
RO in water purifiers stands for Reverse Osmosis.
What type of membrane is used in Reverse Osmosis (RO) process?
A semipermeable membrane is used in the Reverse Osmosis (RO) process.
What is the first step in a water treatment plant?
The first step in a water treatment plant is typically flocculation.
What is the purpose of the sedimentation tank in water treatment?
The purpose of the sedimentation tank in water treatment is to settle down heavy particles.
What materials are used in water filtration layers?
Materials commonly used in water filtration layers include charcoal, gravel, and sand.
What is the purpose of the disinfection tank in the water treatment process?
The purpose of the disinfection tank in the water treatment process is to kill harmful microorganisms.
What minerals may be added at the final stage of water treatment?
Minerals such as fluoride and sodium salts may be added at the final stage of water treatment.
What does turbidity in water mean?
Turbidity in water refers to cloudiness due to suspended particles.
What do flocculates do in water treatment?
In water treatment, flocculates cause dust and pesticides to stick together, making them easier to remove.