Classification and management of wastes - class-IX
Description: classification and management of wastes | |
Number of Questions: 46 | |
Created by: Garima Pandit | |
Tags: waste water story waste and its management soil pollution dealing with garbage natural resources environmental management conservation of environment our environment social responsibility of commercial organisations towards the environment management of natural resources waste management pollution - a rising environmental problem biology commercial studies waste products cleanliness and hygiene |
In ...................... strategy for saving the environment, things are used again and again.
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Reuse
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Invent
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Both A and B
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None of the above
In reuse strategy for saving the environment, things are used again and again. Many items found around the home can be used for different purposes. So before you throw those items away, think about how they can be reused.
What is the most valuable recyclable component of a circuit board?
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Copper
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Silver
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Gold
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Platinum
Non-biodegradable pollutants are created by
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Nature
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Excessive use of resources
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Humans
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Natural disasters
Non-biodegradable pollutants refer to toxic pollutants that are not degraded or decomposed naturally into less harmful compounds. Humans are the primary source of producing non-biodegradable pollutants. These pollutants include heavy metals such as arsenic, mercury and lead, polythene, synthetic fibres and DDT (dichloro-diphenyl-trichloroethane).
Plastic is one of the most harmful .......... waste.
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Biodegradable
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Non biodegradable
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Biotic
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Abiotic
The substance which can be easily decomposed by natural decomposers is called as biodegradable wastes such as humans and animal excreta, plant wastes. Whereas the substance that cannot be decomposed by the natural decomposers and harm the environment is called as non biodegradable such as plastics, nuclear wastes or radioactive wastes, chemical wastes like DDT. Abiotic is the nonliving component of the ecosystem which consists air, water sunlight etc. Biotic is the component of an ecosystem which consists all living things like animals and plants. Thus, the correct answer is option B.
Which one is non-biodegradable?
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DDT
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Sewage
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Livestock waste
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Market garbage
All materials are not recycled in the environment.
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True
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False
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Either
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Neither
Biodegradable wastes should be separated and kept in blue colour bins for garbage collectors.
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True
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False
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Either
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Neither
In the following groups of materials, which group(s) contains only non-biodegradable items?
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wood, paper, leather
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polythene, detergent, PVC
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plastic, detergent, grass
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plastic, bakelite, DDT
Multiple Choice Questions
Which one is non biodegradable
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sewage
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market garbage
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liverstock waste
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DDT
Non - biodegradable substances are the one which_________________
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Do not degrade
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Degrades efficiently
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Degrades very slowly
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Remains unharmed
- Non-Biodegradable wastes are those that cannot break down or degrade for many years. These are waste that cannot change into manure and they pile up causing pollution. Burning these fuels causes more pollution in the environment. The non-biodegradable wastes become useful when they can be recycled.
Which of the following materials are non-biodegradable?
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Plastic mugs
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Egg shell
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Leather belt
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Both A and C
Egg shell and leather belt are obtained naturally from living organisms and are made of biodegradable components.
Identify the inorganic impurity
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Urine
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Human faeces
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Phospahates
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Pesticides
Urine, Human feces and pesticides consist or compounds made up of carbon and other organic constituents and accumulate as organic waste. While phosphates are the compounds considered as inorganic and they are the inorganic impurity in nature.
Find incorrect statement for Non-biodegradable pollutants:
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The non-biodegradable pollutants are decomposed by microbes
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They are degraded slowly
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They are often harmful
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DDT, BHC, plastics, broken glass are examples of non-biodegradable pollutants
Non-biodegradable wastes are those that cannot be decomposed or dissolved by microbes or any natural agents. They remain on earth for thousands of years without any degradation.
Acid deposited in rain and snow is known as
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Wet Deposition
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Dry Deposition
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Acid Rain
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Rain Depolarization
'volatile solids' represents
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Dissolved solids
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Organic Solids
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Colloidal Solids
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Suspended Solids
DDT is a _____________ pollutant
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Bio degradable
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Non bio degradable
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Un-biodegradable
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Naturally degradable
Most harmful environmental pollutants are
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Biodegradable
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Corrosive agents
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Non-biodegradable chemicals
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Toxic chemicals
Waste that cannot be broken down by other living organisms is called as non-biodegradable. Non-biodegradable substances affect the environment. They may enter the food chain and harm the organisms in the higher trophic levels (by biomagnification), e.g., pesticides, like DDT, non-biodegradable substances like radioactive wastes, lead, mercury etc., affect the health of all living organisms.
Waste are of two types, biodegradable and non-biodegradable.
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True
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False
Wastes are of two types biodegradable and non-biodegradable. Biodegradable waste is an organic matter which can be broken down into simple organic molecules by micro-organisms using composting or digestion. Biodegradable products include paper, clothes, fruit, cardboard, vegetables.
Which of the following is non-biodegradable?
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Tea leaves
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Nylon
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Remains of animals
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Fleece of sheep
The correct answer is 'nylon'
Which of the following is a biodegradable organic substance?
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Plastics
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Oils
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Pesticide
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Garbage
The term biodegradable is used to describe materials that decompose through the actions of bacteria, fungi, and other living organisms. Organic substances are carbon containing substances. Thus, garbage can be biodegradable organic substance.
DDT (dichloro diphenyl trichloroethane) is an example of
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Biodegradable waste
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Non-biodegradable waste
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Vermicompost
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None of these
The substance which cannot be broken down easily like pesticides, insecticides (DDT), mercury, glass particles etc. These remains as such in environment for a very very long time.
What does E-waste stand for?
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Environment waste
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Electronic waste
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Equipment waste
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All of the above
Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for reuse, resale, salvage, recycling or disposal are also considered e-waste.
Non-biodegradable wastes are
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Biological in origin
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Commonly man made
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Degraded by microbes
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Do not accumulate in nature
Non-biodegradable wastes can not be broken down by decomposes because they do not have enzymes for the same. They are commonly man made. They are not degraded by micro organism. They pile up and accumulate in nature.
Biodegradable waste can be _______
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Naturally degraded
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Artificially degraded
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Lead enter food chain and lead to biomagnification
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All
Biodegradable wastes are naturally degraded by microbes they can also be disposed of thoughts waste treatment plants or converted into an agriculture resources of nature and compost.
Which of the following groups contain only bio-degradable items?
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Grass, flowers and leaves
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Grass, wood and plastic
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Fruit peels, cake and plastic
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Cake, wood and glass
An analysis of soil sample revealed $0.1 mg$ of a pesticide and $1 mg$ of the same of pesticide was found in grains. However in the adipose tissue of birds the concentration was $2 mg$. The reason for this is the phenomenon known as
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Bioabsorption
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Biotranslocation
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Biomagnification
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Biomulitiplication
Biomagnification is the accumulation or increasing bioconcentration of lipophilic pesticides in the top members of the food chain. During biomagnification, the concentration of pesticides goes on increasing according to the food chain and highest values occur in the consumers of the top trophic level. So, the value of pesticide will go on increasing from the soil, to the plant and to the bird.
Biodegradable pollutant is
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Plastic
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Asbestors
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Sewage
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Mercury
Drawback of DDT as pesticide is
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It becomes ineffective after some time
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It is less effective than others
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It is not easily/ rapidly degraded in nature
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Its high cost
Dichlorodiphenyltrichloroethane (DDT) is an organochlorine compound used as an insecticide in agricultural fields. The major disadvantage of DDT is bioaccumulation or not easily degrading nature, due to fat solubility it is accumulated in living tissues. The human body is not able to break it which cause its build up in the food chain and causing poisoning in the animals. Its effects can be seen in birds as the production of thin eggshells vulnerable to damage.
DDT has been a major pollutant because it
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Kills aquatic animals
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Kills pests
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Destroys many valuable species
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Is non-degradable
Dichlorodiphenyltrichloroethane (DDT) is an organochlorinated chemical used as an insecticide. This compound is highly stable in the environment. It readily stays in the adipose tissues of the living organisms and accumulates at the successive trophic level to cause the biomagnification. In soil, it is not acted upon by the decomposing bacteria so it remains persistent for years. Due to its nonbiodegradable nature, it became a major pollutant of the agricultural soil. Its use was banned by the Stockholm Convention of 2001.
A non-biodegradable pollutant is
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Newsprint
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Green leaves
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DDT
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Cowdung
A non-biodegradable pollutant is the one that could not be broken down or decomposed by the decomposing fungi and bacteria present in the water and soil. DDT is an organochlorinated compound used as an insecticide that is chemically stable. It does not dissolve in water rather it mixes with the adipose tissue in the living organisms and persists in the food chain, causing biomagnification. In the soil, it destroys the microbial fauna.
This is a nonbiodegradable pollutant :
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Sewage
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Sulphur dioxide
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Oxides of nitrogen
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Lead vapour
What is the correct match about biodegradable and non-biodegradable substances?
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Biodegradable- broken down into simpler substances by biological processes.
Non-biodegradable- cannot be broken down into simpler ones by biological processes. -
Biodegradable- cannot be broken down into simpler ones by biological processes.
Non-biodegradable- broken down into simpler substances by biological processes. -
Both A and B.
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None of the above.
Animal dung is ______ waste.
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biodegradable
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non-biodegradable
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hazardous
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toxic
The most harmful environmental pollutants are
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human organic wastes
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wastes from feedlots
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non-biodegradable chemicals
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natural nutrients present in excess
biodegradable wastes are those wastes which easily gets degraded into simpler molecules over a period of time by microorganisms. Biodegradable wastes include human organic wastes, nutrients wastes etc.whereas nonbiodegradable substances accumulate in the environment and causes pollution. These wastes also sometimes accumulate in an organism when the feed upon them and through biomagnification reaches the higher concentration in higher groups.
Non-biodegradable articles are the ones which cannot be decomposed.
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True
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False
The phenomenon of accumulation of non-biodegradable pesticides in human beings
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Biomagnification
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Bioaccumulation
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Biodegradation
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Bioremediation
What causes rise in nutrient level of water?
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Deforestation
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Biodegradation
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Eutrophication
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Composition
Biomedical waste (management and handling) rules, was established in the year _____
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1995
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1998
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1992
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1996
Biomedical waste, if not handled properly is a potent source of diseases like AIDS, TB, Hepatitis and other bacterial disease causing serious threat to human health. Therefore this waste needs prime attention for its safe and proper disposal. So the Government of India published Biomedical waste (Management and Handling) Rules on July 27, 1998.
Non-biodegradable wastes are ____ in nature.
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Decomposable
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Non-decomposable
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Both
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None
Non biodegradable wastes are non-decomposable in nature. They are not degraded by microbes. They pile up and accumulate in nature.
Find the odd one out:
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Thermocols
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Plastic bags
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Resins
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Ash
Wastes can be distinguished as decomposable and non decomposable waste. Ash is decomposable while rest are non decomposable.
Most harmful type of environmental pollutants are
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Human organic wastes
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Natural nutrients in excess
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Waste animal feed
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Non-biodegradable chemicals
One of the side effects of developing civilisation can be observed in the form of presence of non-biodegradable material which cannot be broken down into simple, harmless substance by the action of bacteria. They are lethal to land where they are dumped and last for centuries, burning of them release poisonous gases injurious to human and animals health in various possible ways. Entry of such substances pollute water bodies because of their non-depleting nature they occupy space in water bodies and consumed by animals causing severe health condition and death. Polythene, plastic is some deadly non-biodegradable waste.
This is non biodegradable pollutant
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Sulphur dioxide
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Oxides of nitrogen
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Lead vapour
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Sewage
The pollutants which cannot be broken down into simpler, harmless substances in nature, are called non-biodegradable pollutants. DDT, plastics, polythene, bags, insecticides, pesticides, mercury, lead, arsenic, metal articles like aluminium cans, synthetic fibres, glass objects, iron products, and silver foils are non-biodegradable pollutants.
Which one of the following statements pertaining to pollutant is correct?
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DDT is non-biodegradable pollutant.
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Excess fluoride in drinking water causes osteoporosis.
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Excess cadmium in drinking water may cause black foot disease.
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Methyl mercury in water may cause 'itai itai' disease.
DDT is an organochlorine pollutant used as insecticides and has several environmental impacts. Chemicals in DDT do not degrade easily and remain in the soil for a long time after its application because it cannot be broken down by the action of microorganism and thus persists and is lethal to human and animal life.
Which is matched for composite waste?
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Waste clothing, waste plastics such as toys
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Waste clothing, rocks
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Toys, green waste
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Toys, bottles, paper
Composite waste is a heterogeneous mix of trash composed of different types of materials. Composite waste includes waste clothing, Tetra Packs, waste plastics such as toys.
Rules of effective environmental waste management or three R's are:
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Reduce, Return, Recycle
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Reduce, Recover, Recycle
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Reduce, Reuse, Recycle
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Reduce, Remove, Recycle
The three R's - reduce, reuse and recycle - saves our environment and they all help to cut down on the amount of waste generated in the environment.
The 'three Rs' that will help us to conserve natural resources for long term use are
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Recycle, regenerate, reuse
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Reduce, regenerate, reuse
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Reduce, reuse, redistribute
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Reduce, recycle, reuse
Reduce the consumption of various resources wherever possible. For example- we can reduce the consumption of electricity by switching off lights and other appliances when they are not required.
Recycle- There are many items which can be recycled again and again. Recycling is another way of reducing the demand for natural resources. For example- by recycling paper, we reduce the demand for wood and thus, help in saving the forest.
Reuse- Many items can be reused, many times. For example, the old newspaper can be used for packing many items. We can use one side printed sheets for our rough work at home/work.