Environmental Studies · General Awareness
Waste Management and Pollution
2,230 Questions
Waste management and pollution control address waste-to-energy technologies, hazardous disposal, and organic recycling methods. The questions cover landfilling, bioremediation, and marine debris indicators. This topic holds significant weight in UPSC, State PSC, and SSC general studies and environmental exams.
Waste-to-energy technologiesHazardous waste disposalBiogas storage methodsOrganic waste compostingPlastic pollution
Waste Management and Pollution Questions
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increasing the speed of biodegration of wastes
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preventing the gases from entering the soil
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cutting down greenhouse gases
C
Correct answer
Explanation
Landfills produce methane, a potent greenhouse gas, as waste decomposes. Capturing this gas prevents it from entering the atmosphere and allows it to be used as an energy source.
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incinerators
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material recovery facilities.
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sanitary landfills.
C
Correct answer
Explanation
Sanitary landfills are engineered facilities designed to contain waste safely by using liners, leachate collection systems, and daily soil covers to minimize environmental impact.
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storage warehouses
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landfills
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rivers
B
Correct answer
Explanation
Despite efforts to recycle and compost, the vast majority of municipal solid waste in industrial nations is still disposed of in sanitary landfills.
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hazardous
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compost
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municipal solid
A
Correct answer
Explanation
Paint, cleaners, and solvents contain chemicals that pose risks to health and the environment, classifying them as hazardous waste rather than standard municipal solid waste.
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hazardous waste.
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municipal solid waste.
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industrial waste.
C
Correct answer
Explanation
Industrial waste is defined as waste generated by manufacturing, mining, agricultural, and petroleum refining processes. It is distinct from municipal solid waste, which comes from homes and businesses.
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safely storing hazardous waste for long periods of time
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reducing the volume of liquid hazardous waste
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allowing the waste to become less hazardous over time
B
Correct answer
Explanation
Surface impoundments are primarily used to store liquid hazardous waste in shallow ponds, allowing the liquid component to evaporate and reducing the overall volume of the waste. They are not intended for long-term storage or for treating the waste to become less hazardous.
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can leach heavy metals.
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are highly reactive.
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are ignitable.
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cannot be recycled.
A
Correct answer
Explanation
Electronic waste (e-waste) contains hazardous materials such as lead, mercury, and cadmium. These heavy metals can leach into the soil and groundwater if the devices are disposed of in landfills.
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surface impoundment and deep-well injection
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incinerating and open-air burning
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recycling and composting
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sanitary landfills and open dumps
C
Correct answer
Explanation
Waste recovery refers to the process of reclaiming materials for further use. Recycling and composting are the two primary methods used to recover resources from the waste stream.
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No pollution is released.
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Waste disappears during incineration.
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Incinerating waste has no benefits.
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The waste’s weight and volume is greatly reduced.
D
Correct answer
Explanation
Incineration is a waste treatment process that involves the combustion of organic substances. A primary advantage is that it significantly reduces the volume and weight of the waste, making it easier to manage the remaining ash.
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industrial waste.
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wastewater
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municipal solid waste.
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hazardous waste.
A
Correct answer
Explanation
Industrial waste is defined as waste produced by industrial processes, including manufacturing, mining, and agriculture. Wood scraps from furniture production fall under this category.
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industrial waste.
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hazardous waste.
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municipal solid waste.
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compost waste.
C
Correct answer
Explanation
Municipal solid waste (MSW) is the standard term for non-liquid waste generated by everyday activities in homes, schools, and businesses.
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Incinerate it and generate electricity.
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Re-use the waste.
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Recycle it.
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Reduce the amount produced.
D
Correct answer
Explanation
The waste management hierarchy places reduction at the top because preventing waste from being created is the most effective way to minimize environmental impact.
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Recycled
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Landfill
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Compost
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Incineration with energy recovery.
B
Correct answer
Explanation
Despite recycling efforts, the majority of municipal solid waste globally is still disposed of in landfills.
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reduce
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reuse
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recycle
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create
C
Correct answer
Explanation
Recycling is the process of collecting and processing materials that would otherwise be thrown away as trash and turning them into new products.
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It saves trees.
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It saves oil.
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It saves landfill space.
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All of the above.
D
Correct answer
Explanation
Recycling paper reduces the need to cut down trees, saves energy used in production, and reduces the volume of waste sent to landfills.