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Solid waste and its management - class-VIII

Description: solid waste and its management
Number of Questions: 26
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Tags: conservation of environment
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Action required to control soil pollution and to reduce soil pollution is called as

  1. Solid waste management

  2. Solid disposal

  3. Both A and B

  4. None of the above


Correct Option: A
Explanation:

Solid waste management is all those activities and action required to manage waste from its inception to its final disposal. This includes amongst other things, collection, transport, treatment and disposal of waste together with monitoring and regulation. 

Which of the following is not a method of source reduction?

  1. Making packages that weigh less

  2. Recycling

  3. Municipal composting

  4. Incineration


Correct Option: D

Peel of fruits and vegetables are mainly used for 

  1. Compost

  2. Weedicides

  3. Fertilizer

  4. All of the above


Correct Option: A
Explanation:

The peel of fruits and vegetables contain cellulose and pectin. These are the biodegradable form of wastes. They can be decomposed with the action of the microbes. These wastes are used for the production of compost which can be used as manure for the agricultural crops. 

Thus, the correct answer is option A. 

Which of the following solid waste can be easily decomposed?

  1. Nuclear waste

  2. Biodegradable

  3. Non-biodegradable

  4. All of the above


Correct Option: B

Rag pickers remove

  1. plastic, polythene, paper and metal wastes

  2. rags, cardboard, glass articles

  3. both (a) and (b)

  4. food articles.


Correct Option: C
Explanation:
Rag pickers remove recyclable materials from the wastes such as plastic, polyethene, paper, metal wastes, rags, cardboard, glass articles etc. because all these items can be recycled and reused. For example, the paper is recycled into a usable form, metals and plastic can be melted and recycled any number of times, glass articles are recycled to form new articles as the quality of glass is not affected on recycling. 
Food articles are biodegradable and hence, they are not recycled.
Hence, options A and B are correct.
So, the correct answer is 'both (a) and (b)'.

In which solid waste disposal method, solid waste is reduced to fine particles in grinding machines?

  1. Incineration

  2. Pulverization

  3. Compositing

  4. Landfilling


Correct Option: B

The 3 R principle in waste management involves

  1. Reduce, Regain, Reuse

  2. Reduce, Reuse, Recycle

  3. Reduce, Reform, Reset

  4. Reduce, Retain, Regain


Correct Option: B

Collection' is first fundamental function of;

  1. Solid waste management

  2. Solid waste disposal

  3. Environmental Management

  4. All of above


Correct Option: A

In recyclable pakaging system, containers are used to collect storage of waste, bringing up to disposal site, unloading and returning to original location, known as

  1. Stationary Container System

  2. Hauled Container System

  3. Colloidal Solids

  4. Collection System


Correct Option: B

Which of the following is an important step before the last step of solid waste management?

  1. Collection

  2. Recovery

  3. Disposal

  4. None of the above


Correct Option: B
Explanation:

There are various steps which are involved in the safe management of the solid waste. Reduce, reuse, recycling, sorting, processing, recovery and disposal are major steps of integrated waste management. The important step before the last step is the energy recovery. The forms of wastes which can be recovered to obtain energy can be segregated and the remaining waste forms can be disposed. This reduces the energy which will be required for the transport and the final disposal of the waste.

Thus, the correct answer is option B. 

Resource recovery is also known as 

  1. Reuse

  2. Recycle

  3. Reduce

  4. All of the above


Correct Option: B
Explanation:

There are different waste management strategies for waste minimization. The aim of the waste management is to obtain the maximum benefits from products and to generate the minimum amount of waste. Resource recovery in the waste management process is a step of converting a waste material into a useful product. It is called as recycling. 

Thus, the correct answer is option B.

 The rate of pyrolysis increases with 

  1. Temperature

  2. Pressure

  3. Preciptation

  4. None of the above


Correct Option: A
Explanation:
Pyrolysis is the process of breaking organic compounds in the presence of heat but in absence of oxygen. The process accelerates with increase in temperature. 
So, the correct answer is 'Temperature'

Waste minimization targets at

  1. Reducing the amount of waste produced in society

  2. Preventing the creation of waste

  3. Supporting the efforts to promote a more sustainable society

  4. All of the above


Correct Option: D
Explanation:

Waste minimisation is the method which aims at reducing the amount of waste which is generated. The waste which is generated can be reduced at the society level. There should be a decrease in the production or creation of the wastes. The used products can be transformed and used again, instead of throwing the substance as waste. Waste minimisation is one of the methods which can help to promote a sustainable society.

Thus, the correct answer is option D.

 ............ is the most common method of disposal in most European countries.

  1. Automated vacuum collection

  2. Curbside collection

  3. Pyrolysis

  4. None of the above


Correct Option: B
Explanation:

Curbside collection is the method of waste disposal in the European countries. There are special bins which are used for the collection of the wastes from the residential areas. The wastes are then recollected in special trucks. These trucks are used for the transport of the wastes to the areas outside the premises of the city.

Thus, the correct answer is option B. 

 ............. is a disposal method in which solid organic wastes are subjected to combustion.

  1. Landfill

  2. Incineration

  3. Recycling

  4. None of the above


Correct Option: B
Explanation:

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration can be described as thermal treatment. Incineration of waste materials converts the waste into ash, flue gas and heat. 

Thus, the correct answer is option B.

Incineration is also known as 

  1. Thermal treatment

  2. Landfill

  3. Decomposition

  4. None of the above


Correct Option: A
Explanation:

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration can be described as thermal treatment. Incineration of waste materials converts the waste into ash, flue gas and heat. 

Thus, the correct answer is option A.

Processing is a step during waste management which means

  1. Operation to convert a material into a non-biodegradable waste

  2. Operation to convert a material into a useful product

  3. Operation to convert a material into a weedicides

  4. None of the above


Correct Option: B
Explanation:
There are different waste management strategies for waste minimization. The aim of the waste management is to obtain the maximum benefits from products and to generate the minimum amount of waste. Processing during the waste management process is a step of converting a waste material into a useful product. It is called as recycling. 
Thus, the correct answer is option B.

 Waste minimisation can improve

  1. Efficient production practices

  2. Economic returns

  3. Quality of products produced

  4. All of the above


Correct Option: D

Waste hierarchy gives information about

  1. Waste minimization

  2. Incineration

  3. Recycle

  4. None of the above


Correct Option: A
Explanation:

Answer is option A i.e. "Waste minimization"
Waste Hierarchy is based on the principle that it is better to not to create waste. It helps in managing waste according to best for the environment. The aim of the waste hierarchy is to extract the maximum practical benefits from products and to generate the minimum amount of waste.

Eco save toilets are working in many areas of

  1. Assam and West Bengal

  2. Kerala and Sri Lanka

  3. Maharashtra and Andhra Pradesh

  4. Karnataka and Sri Lanka


Correct Option: B
Explanation:
Ecological sanitation is a sustainable system for handling human excreta, using dry composting toilets. This is a practical, hygienic, efficient and cost-effective solution to human waste disposal. With this composting method, human excreta can be recycled into a resource (as natural fertilizer), which reduces the need for chemical fertilizers. There are working ‘EcoSan’ toilets in many areas of Kerala and Sri Lanka. 
So the correct answer is 'Kerala and Sri Lanka'.

Tipping is a technique of

  1. Sewage disposal

  2. Waste disposal

  3. Smoke treatment

  4. Effluent


Correct Option: B
Explanation:
A. Sewage disposal is the process of transport of sewage to the sewage treatment plant where harmful contaminants are removed from it so that it can be discharged into water bodies.
B. Waste disposal is the management of different types of wastes generated from the community of people.
C. Smoke treatment is the technique of reducing exhaust smoke that is produced from the burning of fuels in vehicles.
D. Effluent is the liquid or waste water discharged in water bodies after its treatment in sewage treatment plants.
Tipping, also known as sanitary landfilling, is a technique of waste disposal in which solid waste is dumped into land pits and then covered by layers of soil so that flies and other vectors are not attracted there.
So, the correct answer is 'Waste disposal'.

Which sentence is not true in context with house hold waste management?

  1. Buy loose fruits and vegetables to avoid packaging

  2. Throwing waste in garbage

  3. Increase the use of polythene

  4. Use rechargeable batteries


Correct Option: C
Explanation:

Waste management includes activities that are required to manage waste from its inception to its final disposal. Household waste management includes separating household wastes in different parts and proper disposal of it or converting it into useful resources. There are several ways in which this can be achieved.

1. Buy loose fruits and vegetables to avoid packaging.
2. Throwing waste in garbage.
3. Use rechargeable batteries.
4. Decrease or stop the use of polythene. Using cloth bag instead of plastic bag.
5. Do vermicomposting.
6. Reduce paper usage.
7. Reuse containers.
Thus, the correct answer is 'Increase the use of polythene.'

How many categories are there in solid waste?

  1. Two

  2. Three

  3. Five

  4. Four


Correct Option: B

In which waste disposal method large areas of low lying waste lands are available?

  1. Pulverization

  2. Landfilling

  3. Incineration

  4. Sea Disposal


Correct Option: B

............ is a principle/ theory where the polluting party pays for the impact caused to the environment.

  1. Polluter pays principle

  2. HardyWeinberg principle

  3. Spontaneous generation theory

  4. None of the above


Correct Option: A
Explanation:

The polluter pays principle has been proposed to regulate the pollution. This principle states that the person who is responsible for pollution will pay for the pollution. The person who pollutes the environment will be known as the polluter. There are certain standards for the release of the gas from the vehicles. If the person crosses the limit of standards, the person is required to pay for the impact caused to the environment. 

Thus, the correct answer is option A. 

Solid waste disposal policy was framed in 

  1. 1989

  2. 1867

  3. 2000

  4. 2003


Correct Option: C
Explanation:

Solid waste disposal policy is the policy which is proposed by the municipal waste management. This policy was framed in the year 2000. The policy focuses on the collection and proper disposal of the wastes which are generated in the cities. This waste disposal policy should be followed to maintain the hygiene of citizens and cities in India.

Thus, the correct answer is option C. 

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