Environmental Studies · General Awareness

Waste Management and Pollution

2,184 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

Multiple choice biology wastewater story personal and public cleanliness who will do this? basics of water pollution water borne disease hygiene - a key to healthy life

Sewage is mainly a

  1. liquid waste

  2. solid waste

  3. gaseous waste

  4. mixture of liquid waste and organic matter
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sewage is defined as wastewater that contains a mixture of liquid waste from households and organic matter, such as human excreta and food scraps. It is not purely liquid or solid, but a suspension of materials in water.

Multiple choice chemistry man made materials environmental impact: plastics plastic plastic plastic waste garbage in, garbage out

These processes can be used to prevent health hazards of plastics :

  1. Reduce

  2. Reuse

  3. Recover

  4. Recycle
Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation

 

A number of waste prevention techniques are available, and they are commonly summarized as the so-called 4Rs: reduction, reuse, recycling and recovery. 

Reduction, reuse and recycling are known in the industry as the 3Rs. 

We must reduce the use of resources as much as possible and save them for the future generation. Reducing usage is a method of conservation of resources.

Therefore, A, B, C and D option are correct.

Multiple choice physics energy management solar power plant production of electricity from solar energy solar energy and its applications

The ................ animal dung left after the production of biogas is an excellent manure.

  1. spent

  2. coal

  3. methane

  4. pesticides
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The dried manure left after the biogas process is even richer than ordinary muck and makes a fantastic organic fertilizer.
Hence, The spent animal dung left after the production of biogas is an excellent manure.

Multiple choice economics sustainable development with equity introduction to social movements and its types social movements liberalisation

Solid wastes that have not been effectively disposed lead to contamination of ground water resources.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In developed countries, the resources are exploited in a very large quantity that has led to the depletion of the stock of natural resources. The industrialization has polluted the surface water as well as groundwater. Groundwater is usually polluted by solid wastes that has no technique of proper disposal. 

Multiple choice biology towards green energy solar power plant generation of electricity production of electricity from solar energy

Which of the following is the correct sequence of disposal of high-level radioactive wastes?
1. They are kept in thick leak proof containers
2. The wastes are concentrated to reduce their bulk
3. They are stored in special protective shields during handling and transport
4. The wastes are then buried deep down in the earth or undersea bed

  1. 2-1-3-4

  2. 3-2-1-4

  3. 3-1-2-4

  4. 2-3-1-4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Before disposal of high level of radioactive waste which is very harmful for living organism, there is procedure to dispose it. 

Radioactive waste is stored in special protective shield before handling and transport. After that it is reduce to minimum amount and kept in leak proof containers before depose it, so that it cant harm environment around. Waste should be dispose into deep down earth or under sea bed for misuse.
So, the correct option is '3-2-1-4'.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Which of the following waste cannot be considered as a soil pollutant?

  1. Biodegradable

  2. Non-biodegradable

  3. Industrial

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Substances that are not broken down by microorganisms are non-biodegradable. Non-biodegradable substances affect the soil. Biodegradable substances are broken down by organisms and are not harmful to environment. Hence, non-biodegradable and industrial wastes are considered as soil pollutants. They may enter the food chain and harm the organisms in the higher trophic levels. 

Thus, the correct answer is option A.

Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Electronic waste is harmful to soil because

  1. They are non-biodegradable waste

  2. They are biodegradable waste

  3. They can be turned into compost

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wastes are mainly of two types, biodegradable and non-biodegradable. Biodegradable wastes are not harmful to soil as they are broken down by microorganisms. Non-biodegradable wastes like hazardous waste, radioactive waste, electronic waste, etc., are harmful to the soil. These are soil pollutants which may enter the food chain and harm the organisms in the higher trophic levels. 

Thus, the correct answer is option A.

Multiple choice business organisation and correspondence meaning and factors of business environment dimensions of business environment business environment and its dimensions business environment

Which of the following is not a part of Environmental factor?

  1. Emphasis on safety

  2. Energy available and costs,

  3. Waste disposal,

  4. Environmental legislation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Emphasis on safety is not a part of Environmental factor since it is not related directly to the environment. Emphasis on safety falls under the social factor since it includes values and practices.

Multiple choice evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

Which of the following rot completely and do not smell ?

  1. Left over food

  2. Broken glass

  3. Aluminium wrapper

  4. Polythene bags
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The correct answer is 'leftover food'

For anything to rot completely, the microorganisms present in the environment should be able to breakdown the material by the use of their enzymes. Leftover food is easily degraded by these enzymes whereas broken glass, aluminium wrappers and polythene bags don't rot because these enzymes cannot degrade them(or the enzyme action on these substances is so slow that rotting is insignificant)
So the correct option is A.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

Sewage gases are produced by the decomposition of :

  1. organic household

  2. industrial wastes

  3. both A and B

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sewer gas is a complex mixture of toxic and nontoxic gases produced  by the decomposition of organic household or industrial wastes.

Multiple choice

Which of the following is NOT a way to conserve resources?

  1. recycle

  2. reuse

  3. reserve

  4. reduce
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The standard framework for conservation is the three Rs: reduce, reuse, and recycle. 'Reserve' is not typically categorized as one of the primary methods of resource conservation in this context.

Multiple choice

Which of the following is NOT an example of hazardous waste?

  1. Soil

  2. Solid Waste

  3. Garbage

  4. Hazardous materials
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Natural, uncontaminated soil is a safe, organic component of the earth and is not classified as hazardous waste. In contrast, solid waste, garbage, and hazardous materials can contain toxic chemicals, heavy metals, or pathogens that pose environmental risks.