Tag: reduce, recycle, reuse
Questions Related to reduce, recycle, reuse
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