MCQ 11 MarkWhich of the following disease is a waterborne disease?Acold✓choleraCdengueDmalariaAnswerCorrect option: B. choleraBView full question & answer→
MCQ 21 MarkWhich of the following disease is not a waterborne disease?Achicken poxBcholeraCskin infection✓diarrhoea-vomitingAnswerCorrect option: D. diarrhoea-vomitingDView full question & answer→
MCQ 31 MarkIn big cities which gas is passed through water to make the water clean?AoxygenBcarbon dioxide✓chlorineDcarbon chlorideAnswerCorrect option: C. chlorineCView full question & answer→
MCQ 41 MarkHow did Anju plan to clean the water?✓To boilBTo use R.OCTo put alum in the waterDAll of these.AnswerCorrect option: A. To boilAView full question & answer→
MCQ 51 MarkWater is a _________ property.Apublic✓naturalCcheapDBoth (A) and (B)AnswerCorrect option: B. naturalBView full question & answer→
MCQ 61 MarkWhat is the main source of water?AriverBlakeCsea✓rainAnswerCorrect option: D. rainDView full question & answer→