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प्रश्न
Explain why, some materials are biodegradable but some are non-biodegradable.
उत्तर
Some materials are biodegradable, whereas some are non-biodegradable, because decomposers break down natural materials such as paper but do not break down man-made materials such as plastics. Non-biodegradable materials consist of compounds that are not degraded by decomposers, and they persist in the environment.
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संबंधित प्रश्न
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.
Which of the following groups contain only biodegradable items?
Fill in the following blank with suitable word :
Plastic is a ...............material whereas paper is a.............material.
Which of the following are biodegradable and which non-biodegradable?
Glass bottle, Paper, Ball point pen refill, Hay, DDT, Wheat, Cake, Wood, Polythene bag, Jute bag, Cotton cloth, Grass, Vegetable peels
State one advantage of using jute bags over plastic bags for shopping.
Give two examples of biodegradable wastes.
Which of the following cannot be added in a composting pit to prepare compost?
(a) sunflower plants
(b) fruit and vegetable peels
(c) flowers of plastic
(d) red worms
Select two non-biodegradable substances from the following waste generated in a kitchen:
Spoilt food, paper bags, milk bags, vegetable peels, tin cans, used tea leaves
Name any five items which are recyclable.
Expired medicines, used batteries are domestic hazardous waste.
