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Question
Write the benefits of recycling.
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Solution
- Old newspapers, note books, and magazines are sold to a scrap dealer. They will be made into new paper.
- PET bottles are recycled into plastic threads and used to make sports T-shirts.
- Old glass bottles and broken glass pieces are melted to make new glass.
- Broken metal items like tiffin boxes and plates are melted and made into new metal products like toys.
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RELATED QUESTIONS
After the examinations Rakesh with his friends went on a picnic to a nearby park. All friends carried cooked food packed in plastic bags or plastic cans. After eating the food some friends collected the leftover food and plastic bags etc and planned to dispose them off by burning. Rakesh immediately checked them and suggested to segregate the leftover food and peels of fruits from the plastic materials and respectively dispose them off separately in the green and red dustbins placed in the corner of the park.
(a) In your opinion, is burning plastic an ecofriendly method of waste disposal? Why? State the advantage of method suggested by Rakesh.
(b) How can we contribute in maintaining the parks and roads neat and clean?
Why should biodegradable and non-biodegradable wastes be discarded in two separate dustbins?
How does a biodegradable waste differ from a non-biodegradable waste? Give two examples of non-biodegradable wastes which pollute our environment.
What is meant by biodegradable waste materials?
Give two examples of biodegradable wastes.
Which of the following materials are biodegradable?
Animal bones, Iron nails, Plastic mugs, Leather belts, Silver foil
Give two examples of non-biodegradable wastes.
What type of substances are the major pollutants of the environment? Name two such substances
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as ______.
Name any five items which are recyclable.
