Q. Poisoning that causes itai-itai disease is? Pb poisoningCd poisoningHg poisoningCu poisoning Answer: Cd poisoning

Q. Mercury poisoning in water is the reason for  PellegraMinimata diseaseItai-Itai diseaseScurvy Answer: Minimata disease

Q. The presence of blue baby syndrome is caused by the presence of Excess sulphate in drinking waterExcess chlorine in drinking waterExcess heavy metals in drinking waterExcess nitrates in drinking water Answer: Excess nitrates in drinking water

Q. Which of the following is NOT a sign of organic water pollution? BODpHSalinityEutrophication Answer: BOD

Q. Which of the following is the most important cause of biomagnification? EutrophicationDetergent pollutionPesticide pollutionIndustrial pollution Answer: Pesticide pollution

Q. Which of the following is the primary cause of algal bloom? Presence of heavy metalsContamination by pathogensEutrophicationSoil erosion Answer: Eutrophication

Q. The term “eutrophication caused by sewage pollution” refers to the process of Nutrient enrichment of freshwater bodiesNutrient depletion of freshwater bodiesToxic chemical accumulation in freshwater bodiesHeavy metal accumulation in freshwater bodies Answer: Nutrient enrichment of ...

Q. Except for the one, all of the following are well-known oil spills. Deepwater Horizon, 2010Love canal disasterExxon Valdes, 1991Gulf War, 1991 Answer: Love canal disaster

Q. Which of the following is the world’s common cause of mortality & disease? Water pollutionRadioactive pollutionAir pollutionSoil pollution Answer: Water pollution

Q. What are the health effects of drinking water with too much fluoride? FluorosisToothachesLung diseaseIntestinal infection Answer: Fluorosis

Q. Non-flammable compounds called chlorofluorocarbons are commonly used in? PerfumesRefrigeratorsAir conditionersAll of the above Answer: All of the above

Q. Which of the following factors is the primary cause of water pollution? AfforestationOil refineriesPaper factoriesBoth b and c Answer: Both b and c