Question 21 MarkThere is no need to segregate dry waste and wet waste before discarding them.AnswerSELFView full question & answer→
Question 31 MarkRespiratory diseases are caused by air pollution.AnswerSELFView full question & answer→
Question 41 MarkSmoke coming out of industries should not be filtered before being released into the atmosphere.AnswerSELFView full question & answer→