Question 21 MarkMethods, a residential school should adopt to manage waste.AnswerThey should give left over food to orphanages, they can use water from kitchen for gardening.View full question & answer→
Question 31 MarkAny two examples of reusing as a student in school.AnswerTo use ink pens, using unused pages from note books to make new note book.View full question & answer→
Question 41 MarkTerm used for any unwanted material which has lost all its utility, which occupies space and creating nuisance for us.AnswerWasteView full question & answer→
Question 51 MarkState any two ill effects of landfill method of waste management.AnswerIt produces methane which is a greenhouse gas. It Contaminates soil and water.View full question & answer→
Question 61 MarkThe disposal of waste material by burying it, especially as a method of filling in pits.AnswerLandfillView full question & answer→
Question 71 MarkAny two benefits of reuse.AnswerReusing items and reducing consumption reduces demand and it saves natural resources and energy to manufacture them.View full question & answer→
Question 81 MarkState any two benefits of recycling.Answer(i) Reduces the amount of waste.(ii) Conserves natural resources such as timber, water and mineral.View full question & answer→
Question 91 MarkProcessing of making iron and steel in a mini steel plant involves which process of waste management.AnswerRecycleView full question & answer→
Question 101 MarkThree R's of waste management.AnswerReduce, reuse and recycleView full question & answer→
Question 111 MarkA natural process whereby earthworms convert waste material with rigid structures into compost.AnswerVermicompostingView full question & answer→
Question 121 MarkThe process of separating waste according to its nature.AnswerSegregationView full question & answer→
Question 141 MarkAny two benefits of composting.AnswerThe waste gets managed and we get naturally formed organic manure.View full question & answer→
Question 151 MarkThe process of converting biodegradable waste into compost.AnswerCompostingView full question & answer→