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Question
How does recycling help reduce pollution?
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Solution
Recycling prevents the emission of many greenhouse gases which are the major cause of global warming. It also reduces water pollutants and saves energy.
RELATED QUESTIONS
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. |
How is solid waste disposed of in ah incinerator?
Explain the link between waste and dangerous diseases like dengue and malaria?
______ can return back to the soil and become food for plants.
What is waste collection?
What is transportation?
The process by which waste materials are used to make new products is called recycling.
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.
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 is lost.
- Lot of heat is generated unnecessarily.
The correct reasons of why we should not burn leaves are
