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प्रश्न
Explain the difference.
Degradable and non-degradable waste
उत्तर
|
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Biodegradable waste |
Non-biodegradable waste |
|
(i) |
Biodegradable waste can be degraded or broken down into simpler, harmless substances by living organisms like microbes or microorganisms. |
Non-biodegradable waste cannot be degraded or broken down into simpler substances by living organisms. |
|
(ii) |
The degradation process in Biodegradable waste is fast. |
The degradation process in Non-Biodegradable waste is slower than in biodegradable. |
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(iii) |
Biodegradable waste is not collected but is used up in a short time. |
Non-biodegradable waste is often collected. |
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(iv) |
Breakdown of these wastes enriches the soil such as plant and animal wastes. Therefore, such wastes are beneficial for the soil. |
They do not break down and cause soil pollution. For e.g. plastics, glass, etc. Such wastes are harmful to the soil. |
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(v) |
Biodegradable waste has become part of biogeochemical cycles and gives back quick turnover. |
Most of the Non-Biodegradable waste can never enter biogeochemical cycles, very slow and more harmful to the earth. |
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(vi) |
E.g. Wasted food, fruits, paper etc. |
E.g. Plastic, rubber, glass metal etc. |
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संबंधित प्रश्न
Students in a school listened to the news read in the morning assembly that the mountain of garbage in Delhi suddenly exploded and various vehicles got buried under it. Several people were also injured and there was traffic jam all around. In the brain storming session the teacher also discussed this issue and asked the students to find out a solution to the problem of garbage. Finally they arrived at two main points -one is self management of the garbage we produce and the second is to generate less garbage at individual level.
1) Suggest two measures to manage the garbage we produce.
2) As an individual, what can we do to generate the least garbage? Give two points.
3) List two values the teacher instilled in his student in this episode.
Every household produces a lot of material A daily. In one of the methods of disposal B, material A is burned at a very high temperature of about 1000°C in a structure called C. During this process, the organic matter present is removed as D and E whereas F is left behind (which can be dumped in a landfill site).
(a) What is material A?
(b) Name the method of disposal B.
(c) What is structure C known as?
(d) What are (i) D (ii) E, and (iii) F?
(e) This method is especially suitable for the disposal of materials produced by certain institutions. Name such institutions.
How many types of waste?
What are sources of waste?
How is solid waste disposed of in ah incinerator?
Explain the role of government in waste management.
Study the image below and write down three items you have at home in each category of waste.
Recyclable: ______
In schools, waste management rules say that we should separate waste into two categories.
Explain the link between waste and dangerous diseases like dengue and malaria?
How does recycling help reduce pollution?
Excessive exposure to ultraviolet radiation causes ______.
______ is the very important step in waste management.
______ waste can be turned into something new which is valuable.
Plastic bags and food packaging is a ______ item.
The burning of solid waste in ______ is called incineration.
India produces 532 million kilos of solid waste every day.
What are the two major types of solid wastes?
Suggest suitable mechanism(s) for waste management in fertilizer industries.
Paheli gave the following ill effects of the practice of burning dried leaves and other plant parts
- Burning degrades the soil.
- Burning produces harmful gases/fumes.
- Precious raw materials to obtain manure at low cost are lost
- A lot of heat is generated unnecessarily
The correct reasons of why we should not burn leaves are
