Class 9 Waste Generation and Management Mock Test (ICSE)

Topics in Waste Generation and Management

• Types of waste
• Sources of waste
• Effects of waste accumulation
• Methods of waste disposal
• Reduce, reuse and recycle

Waste Generation and Management practice questions with answers

1. Q1Multiple choice·1 mark
   Which of the following practices best exemplifies the principle of 'Reduce' in waste management?

   1. (a)Converting dry garden leaves into manure
   2. (b)Using old glass jam jars to store spices in the kitchen
   3. (c)Melting old aluminum cans to manufacture new cans
   4. (d)Using a ceramic mug instead of disposable paper cups
   Show answer and step marks

   1. Correct option: (d)+1

   Answer: (d)
2. Q2Multiple choice·1 mark
   Which of the following waste disposal methods involves the controlled high-temperature thermal destruction of solid waste?

   1. (a)Landfilling
   2. (b)Incineration
   3. (c)Recycling
   4. (d)Composting
   Show answer and step marks

   1. Correct option: (b)+1

   Answer: (b)
3. Q3Multiple choice·1 mark
   Which of the following is classified as non-biodegradable waste?

   1. (a)Fruit and vegetable peels
   2. (b)Fallen leaves
   3. (c)Cattle dung
   4. (d)Polyethylene carry bags
   Show answer and step marks

   1. Correct option: (d)+1

   Answer: (d)
4. Q4Multiple choice·1 mark
   Fly ash, heavy metal residues, and toxic chemical sludge are primarily generated from which source of waste?

   1. (a)Industrial sources
   2. (b)Agricultural sources
   3. (c)Municipal sources
   4. (d)Domestic sources
   Show answer and step marks

   1. Correct option: (a)+1

   Answer: (a)
5. Q5Long answer·4 marks
   Answer the following questions regarding methods of waste disposal: (a) Describe the process of composting as a method of waste disposal for biodegradable domestic waste. (b) State two major advantages of sanitary landfills over open dumping.
   Show answer and step marks

   1. (a) Biodegradable waste (kitchen scraps, leaves, dung) is collected in a pit or heap and decomposed by microorganisms such as bacteria and fungi (or by earthworms in vermicomposting).+1
   2. (a) The waste is converted into humus (compost), a nutrient-rich manure used to improve soil fertility.+1
   3. (b) First advantage, any one of: waste is compacted and covered with soil daily, so flies, rats and stray animals cannot breed or feed on it; liners and leachate collection stop toxic liquid seeping into groundwater; there is less foul smell and less spread of disease; waste is not burnt in the open, so there is less air pollution; the filled site can later be reclaimed as a park or playground; landfill gas (methane) can be collected and used as fuel; or any other valid advantage.+1
   4. (b) Second advantage, a different one from the same list.+1

   Answer: (a) Biodegradable waste is heaped in a pit and decomposed by microorganisms into humus (compost), a manure that enriches the soil. (b) Any two of: daily soil cover keeps flies and rats away; liners stop leachate polluting groundwater; less smell and disease; no open burning; the site can be reclaimed later; landfill gas can be used as fuel.

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