Question: Wani kamfanin ruwa yana amfani da gwaje-gwajen ɗakin gwaje-gwaje akan samar da ruwan kafin aika ruwan ta bututu zuwa gidajen mutane. Ta yaya waɗannan gwaje-gwajen da ake yi a ɗakin gwaje-gwajen suke taimaka wa mutane?
Options:
ta hanyar ƙara sinadaran minerals da sinadaran abinci a ruwa
ta hanyar duba ruwan don tabbatar da cewa ba shi da inganci a sha
ta hanyar tace sunadarai da ƙwayoyin halitta daga cikin ruwa
ta hanyar hana abubuwa masu cutarwa shiga cikin ruwa
Answer: B