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प्रश्न
If all the waste we generate is biodegradable, will this have no impact on the environment?
उत्तर
Biodegradable wastes are decomposed by microorganisms into simpler substances themselves and provide raw materials for producers, but they also have adverse effects on the environment:
- Slow decomposition of biodegradable waste will result in the release of foul smell and harmful gases. When inhaled by human beings, they may cause irritation, nausea, giddiness, etc.
- Decomposing waste provides a breeding ground for some harmful organisms. An abundance of harmful microorganisms may cause diseases in animals, plants, and humans.
- An increase in the number of microorganisms in aquatic mediums will cause oxygen deficiency in waterbodies.
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संबंधित प्रश्न
Differentiate between biodegradable and non-biodegradable substances with the help of one example each.
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?
Why is Government of India imposing a ban on the use of polythene bags? Suggest two alternatives to these bags and explain how this ban is likely to improve the environment.
What are the problems caused by the non-biodegradable wastes that we generate?
Explain why, some materials are biodegradable but some are non-biodegradable.
State one advantage of using jute bags over plastic bags for shopping.
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
Disposable plastic plates should not be used because ______.
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as ______.
n the following groups of materials, which group/groups contain only non-biodegradable materials?
(i) wood, paper, leather
(ii) polythene, detergent, PVC
(iii) plastic, detergent, grass
(iv) plastic, bakelite, DDT
(a) (iii)
(b) (iv)
(c) (i) and (iii)
(d) (ii) and (iv)
Which of the following is not a non-biodegradable material?
(a) nylon socks
(b) plastic school bag
(c) jute carry bag
(d) polyester clothes
We often use the word environment. What does it mean?
What is separation of waste?
The average person in India produces ______ kg of waste every day.
