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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?
Why is e-waste harmful? Express your opinion about this.
Multiple Choice Type:
The most rapidly increasing and much harmful waste today is
Define electronic waste and list at least six items which come under this category.
Give Technical Terms:
Any non-biodegradable pollutant.
The question has four options. Choose the correct answer:
Composting is carried out from
Why should we not bum dried plant leaves and husk? What is the best way to get rid of them?
List waste products produced from an industry.
Which of the following is the best way for disposal of vegetable and fruit peels?
Correct the definition of certain terms given below by changing only one word.
Compost: Substances converted into manure for use in industries.
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.
Put a tick (√) against the garbage items given in Table 16.1 which could be converted into manure. Put a cross (×) against the others.
| Garbage Items | Make manure or not | |
| (i) | Egg shells | |
| (ii) | Straw | |
| (iii) | Dry flowers | |
| (iv) | Pebbles | |
| (v) | Broken pieces of glass | |
| (vi) | Nails and screws | |
| (vii) | Plastic bangles | |
| (viii) | Left over food | |
| (ix) | Steel broken vessel | |
| (x) | Dead animals |
Write 3 sentences on what comes to your mind when you chance to see the following.
Foul odour emanating from garbage at the entrance of your house.
What happens when insecticides, motor oil, paints are poured down the drain?
Which one of the following is a biodegradable waste?
Choose the odd one out from the following terms and name the category to which the others belong:
Define the following term:
Pollution
