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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
Give any two ways in which biodegradable substances would affect the environment.
How are most of the solid wastes in urban areas disposed of?
Why is e-waste harmful? Express your opinion about this.
Differentiate between degradable and non-degradable type of waste.
Give a reason for the following :
Landfills are coming up fast near large cities.
Give a reason for the following :
Why is municipal sewage is first separated into degradable and non-degradable wastes?
Give two-ecofriendly ways of treating kitchen wastes.
Give two examples of domestic wastes.
The question has four options. Choose the correct answer:
Which one is the most toxic?
What is a landfill?
First link in any food chain is usually green plants because ______.
Which of the following is biodegradable?
A garbage collector separate items mentioned below in the garbage into red, green and blue containers for their transfer to landfill, composting pit and recycling unit respectively.
Items:
- Plastic bags
- Newspaper and journals
- Screw and nuts
- Vegetable peels
- Metal chips
- Egg shells
Which items were transferred to which bin?
Read the poem written below and then answer the questions from the information gathered from the book or elsewhere.
Name two items of waste each that need to be sent to a
- landfill,
- for composting.
Beera, a farmer would clear his field everyday, and burn dry leaves fallen on the ground. After sometime he found that those living in huts near his field were suffering from cough and breathing problems.
- Can you explain why?
- Also suggest an environment friendly way to dispose the dry leaves.
Write 3 sentences on what comes to your mind when you chance to see the following.
A cow eating a polythene bag.
What happens when cooking medium is made to flow down a drain?
What happens when tea leaves, cotton swabs and old soft toys are thrown into the drain?
List two classes into which garbage is classified.
One of the best solutions to get rid of non-biodegradable wastes is ______.
