Waste Managements

Question 1

Which of the following is a primary goal of sustainable waste management?
A) Increasing landfill use
B) Maximizing recycling
C) Minimizing production waste
D) Lowering costs

Answer 1

Maximizing recycling

Question 2

What does ‘waste hierarchy’ prioritize first for waste handling?
A) Disposal
B) Recycling
C) Waste prevention
D) Energy recovery

Answer 2

Waste prevention

Question 3

Which of the following can be considered as ‘green waste’?
A) Hazardous waste
B) Plastic waste
C) Organic waste
D) Electronic waste

Answer 3

Organic waste

Question 4

How does a ‘circular economy’ approach differ from a traditional waste management approach?
A) It eliminates waste entirely
B) It emphasizes reuse and recycling of materials
C) It focuses on landfill disposal
D) It reduces recycling costs

Answer 4

It emphasizes reuse and recycling of materials

Question 5

What is the purpose of Extended Producer Responsibility (EPR) in waste management?
A) To shift disposal costs to consumers
B) To encourage manufacturers to design for easier recycling
C) To increase landfill taxes
D) To promote energy recovery from waste

Answer 5

To encourage manufacturers to design for easier recycling

Question 6

What kind of waste is primarily produced in construction and demolition activities?
A) Organic waste
B) E-waste
C) Solid waste
D) Construction and demolition (C&D) waste

Answer 6

Construction and demolition (C&D) waste

Question 7

Why is ‘source separation’ important in waste management?
A) It improves the efficiency of incineration
B) It increases landfill capacity
C) It helps reduce contamination of recyclables
D) It eliminates the need for recycling

Answer 7

It helps reduce contamination of recyclables

Question 8

What is an example of ‘hazardous e-waste’?
A) Old plastic containers
B) Broken glass
C) Lead-acid batteries
D) Cardboard packaging

Answer 8

Lead-acid batteries

Question 9

What is ‘vermicomposting’?
A) Using worms to compost organic waste
B) Decomposing food waste with bacteria
C) Using high heat to break down organic waste
D) Mixing organic and inorganic waste

Answer 9

Using worms to compost organic waste

Question 10

Why is it beneficial to reduce the use of single-use plastics?
A) They are cost-effective
B) They reduce overall waste
C) They promote better recycling
D) They eliminate waste completely

Answer 10

They reduce overall waste

Question 11

Which of the following describes ‘closed-loop recycling’?
A) Recycling to create similar products
B) Recycling without energy loss
C) Creating different products from waste
D) Selling waste directly to consumers

Answer 11

Recycling to create similar products

Question 12

What are ‘organics’ in the context of waste management?
A) Paper and cardboard
B) Biodegradable plant and food waste
C) Plastic and metals
D) Hazardous waste

Answer 12

Biodegradable plant and food waste

Question 13

What is the main purpose of a material recovery facility?
A) It stores waste temporarily
B) It separates recyclables from waste
C) It manages landfill operations
D) It converts waste into energy

Answer 13

It separates recyclables from waste

Question 14

Which waste treatment process uses microorganisms to break down organic material without oxygen?
A) Composting
B) Aerobic digestion
C) Incineration
D) Anaerobic digestion

Answer 14

Anaerobic digestion

Question 15

What is a common byproduct of anaerobic digestion?
A) Oxygen
B) Methane
C) Carbon dioxide
D) Nitrogen

Answer 15

Methane

Question 16

What does ‘landfill diversion rate’ measure?
A) Amount of waste recycled
B) Percentage of waste diverted from landfills
C) Amount of waste incinerated
D) Total waste disposed in landfills

Answer 16

Percentage of waste diverted from landfills

Question 17

What is the purpose of a waste audit?
A) To measure the size of landfills
B) To assess types and volumes of waste generated
C) To record population statistics
D) To evaluate household income

Answer 17

To assess types and volumes of waste generated

Question 18

How do landfill liners help in environmental protection?
A) They absorb leachate
B) They prevent contamination of soil and water
C) They make waste disposal faster
D) They increase landfill capacity

Answer 18

They prevent contamination of soil and water

Question 19

What is the primary environmental concern with ‘open dumps’?
A) Pollution of soil and water
B) Greenhouse gas emissions
C) Increasing biodiversity
D) Costly to maintain

Answer 19

Pollution of soil and water

Question 20

What type of waste includes household items like old batteries, fluorescent bulbs, and paint cans?
A) E-waste
B) Hazardous household waste
C) Food waste
D) Green waste

Answer 20

Hazardous household waste

Question 21

What does ‘upcycling’ mean in waste management?
A) Reusing products without changing their form
B) Turning waste into new, high-value products
C) Decomposing waste for soil enrichment
D) Burning waste for energy

Answer 21

Turning waste into new, high-value products

Question 22

What is ‘compost tea’, and how is it used in waste management?
A) A liquid fertilizer produced from compost
B) A tea substitute made from plants
C) Liquid extracted from e-waste
D) Wastewater treatment method

Answer 22

A liquid fertilizer produced from compost

Question 23

Which plastic number represents the easiest type to recycle?
A) Plastic #1 (PET)
B) Plastic #3 (PVC)
C) Plastic #5 (PP)
D) Plastic #6 (PS)

Answer 23

Plastic #1 (PET)

Question 24

Which process is commonly used for ‘dewatering’ sludge in wastewater treatment?
A) Aeration
B) Incineration
C) Anaerobic digestion
D) Filter press

Answer 24

Filter press

Question 25

What type of waste would be classified as ‘biomedical waste’?
A) Municipal waste
B) Food waste
C) Industrial waste
D) Medical waste

Answer 25

Medical waste