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प्रश्न
Explain the difference.
Degradable and non-degradable waste
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उत्तर
|
Sr. No. |
Degradable waste |
Non-degradable waste |
|
(i) |
Degradable waste can be degraded or broken down into simpler, harmless substances by living organisms like microbes or microorganisms. |
Non-degradable waste cannot be degraded or broken down into simpler substances by living organisms. |
|
(ii) |
The degradation process in degradable waste is fast. |
The degradation process in non-degradable waste is slower than in biodegradable. |
|
(iii) |
Degradable waste is not collected but is used up in a short time. |
Non-degradable waste is often collected. |
|
(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. |
|
(v) |
Degradable waste has become part of biogeochemical cycles and gives back quick turnover. |
Most of the non-degradable waste can never enter biogeochemical cycles, is very slow and is more harmful to the earth. |
|
(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.
Mention any two sources of wastes.
Explain briefly how as a student, you can help in the reduction of waste generation.
Match the items in column ‘A’ with the proper ones in column ‘B’ and explain their impact on the environment.
| Column ‘A’ | Column ‘B’ |
| 1. Harmful waste | a. Glass, rubber, carry bags, etc. |
| 2. Domestic waste | b. Chemicals, pigments, ash, etc. |
| 3. Biomedical waste | c. Radioactive material |
| 4. Industrial waste | d. Leftover food, vegetables, peelings of fruits. |
| 5. Urban waste | e. Bandages, cotton, needles, etc. |
What is known as waste?
How many types of waste?
What do you mean by a scrubber?
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.
Biodegradable ______
Study the image below and write down three items you have at home in each category of waste.
Non-recyclable: ______
It is best to separate waste into 3 different bins.
What is waste collection?
Garbage buried inside landfills remain here for a long time as they decompose very slowly and become _______.
The process by which waste materials are used to make new products is called recycling.
Analogy:
Biodegradable waste: Leaves, Garden wastes:: Non-biodegradable waste: ______.
What are the two major types of solid wastes?
Suggest suitable mechanism(s) for waste management in fertilizer industries.
In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the waterbody was completely covered with green floating plants and fishes started dying in large numbers.
Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.
Provide a suitable term that expresses the meaning of the following statement.
Contents of the waste bins.
