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प्रश्न
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Industrial waste
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उत्तर
Industrial waste is the waste that is produced from industries during the manufacturing process. For example pieces of metals, plastic, chemicals, etc. Industrial wastes are also a major source of environmental pollution. They lead to air and water pollution. The fumes which are generated from industries are highly poisonous and directly affect the respiratory systems of animals, humans and birds. The industrial waste materials are rich in toxic substances and heavy metals such as mercury, lead, copper, and cadmium. Mercury is a toxic substance, which exhibits the phenomenon of biomagnification when it enters the ecosystem via the food chain. Since these chemicals cannot be decomposed, they keep on accumulating at each trophic level. The maximum concentration is accumulated at the top carnivore’s level. This increase in the concentration of pollutants or harmful chemicals with the increase in trophic level is called biological magnification.
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संबंधित प्रश्न
Why are some substances biodegradable and some non-biodegradable?
Name the various modes of waste disposal.
What is meant by incineration? for what purpose is it used?
How are most of the solid wastes in urban areas disposed of?
What is sewage? How is sewage disposed of?
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Give Technical Terms:
Any non-biodegradable pollutant.
What are the measuress adopted to prevent the spread of disease from sewage water?
What hazards does mining pose to the environment?
The question has four options. Choose the correct answer:
Which one is the most toxic?
Choose the correct option:
The rotting of garbage is said to be completed when the garbage:
What things does waste contain?
Can you make something useful of these waste material?Powder containers, cold-drink cans, plastic bottles, shoe-box.
Discuss:
Is it possible to reduce the problems relating to disposal of garbage?
What are the advantages of cloth bags over plastic bags during shopping?
To what use can you put the following kind of garbage and how?
Rotting smelly garbage
Answer the following question in one or two words or sentences:
Who, out of the following should properly dispose of the garbage – father, mother, elder brother, younger sister?
List two classes into which garbage is classified.
Write one difference between biodegradable and non-biodegradable wastes. List two impacts of each type of the accumulated waste on environment if not disposed off properly.
Define the following term:
Pollution
