Water harnessed for consumption is treated with _________ to kill any viruses or bacteria that may be present in the water

What term is used to describe water that is safe for humans to drink? PotablePureBottledSterilised2What are the two main stages in the treatment of ground water to make it potable?Desalination and sterilisationDistillation and desalinationPassing it through filter beds and sterilisationPassing it through filter beds and desalination3Which of the following is not a method or substance used to kill microbes during the purification of water?UV lightOzoneAntibioticsChlorine4Which two processes can be used to make drinking water from sea water? Filtration and sterilisationDistillation and reverse osmosisFiltration and reverse osmosisDistillation and anaerobic digestion5In the treatment of waste water, sewage is screened to remove large pieces and then filtered to produce sewage sludge. How is the remaining liquid (or effluent) then treated? Aerobic biological treatmentAnaerobic digestionBoilingSterilisation6What are two possible uses of sewage sludge after further treatment? Animal feed and fertiliserFertiliser and potable waterBuilding material and renewable energy sourceFertiliser and renewable energy source

Match the control method for the correct drinking water hazard.Group of answer choicesOral vaccine is available but should be used with improvements in water and sanitation systems.Improved living conditions and the introduction of antibiotics have resulted in a significant reduction of the disease in industrialized countries. Access to safe water and adequate sanitation and hygiene, particularly among food handlers. Vaccinations are also available.Substitute sources with high levels (groundwater), with sources that have low levels (rainwater and treated surface water). Blend sources that have high and low levels. Technologies are also available to reduce the amount in water.Have water tested if you live near an agricultural field. Keep children away from areas where fertilizers are applied.

Multiple Choice QuestionWhich of the following is not a waterborne disease caused by a pathogenic organism?Multiple choice question.InfluenzaTyphoidCholeraInfectious hepatitis

Viruses in drinking water can come from what sources? (Select all that apply.)Group of answer choicesHuman fecal wasteCalcium and magnesiumPlantsHigh dissolved oxygen (DO) levelsAnimal fecal waste

Is the most significant route of Pathogen Transmission.*WaterAirSoil