Advertisements
Advertisements
प्रश्न
Write note.
Industrial waste
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
How are most of the solid wastes in urban areas disposed of?
Write note.
Plastic waste
What are the most important steps in waste management?
What are the measuress adopted to prevent the spread of disease from sewage water?
Give two-ecofriendly ways of treating kitchen wastes.
The question has four options. Choose the correct answer:
Sewage water is purified by
What is a landfill?
What things does waste contain?
Observe the bins and waste material heaps and suggest what materials can be used for preparing handicrafts materials.
Which of the following is biodegradable waste?
Read the poem written below and then answer the questions from the information gathered from the book or elsewhere.
Name the two kinds of waste that need to be separated from each other in two different waste bins.
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 rag picker
Which of the following features relates to biodegradable substances?
Choose the odd one out from the following terms and name the category to which the others belong:
