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प्रश्न
What are the problems caused by the non-biodegradable wastes that we generate?
उत्तर १
The problems caused by non-biodegradable wastes are:
- The cause is biomagnification.
- They increase pollution.
- They make the environment unclean.
- They kill useful microorganisms.
उत्तर २
Non-biodegradable wastes cannot be broken down into simpler substances. Their volume keeps on increasing, creating the problem of their safe disposal. Some of the non-biodegradable wastes, like heavy metals and pesticides, enter the food chain and increase in the upper trophic levels. Non-biodegradable wastes reduce soil fertility by changing the natural pH balance. Polythene, plastics, etc., when buried under soil, render that area barren and lead to soil pollution. These wastes do not bum completely in the presence of oxygen and release toxic gases, which cause air pollution. The substances may be harmful if they accumulate in the food chain due to biomagnification, like DDT.
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संबंधित प्रश्न
Why should biodegradable and non-biodegradable wastes be discarded in two separate dustbins?
Which of the following groups contain only biodegradable items?
If all the waste we generate is biodegradable, will this have no impact on the environment?
List two changes in habit that people must adopt to dispose of nonbiodegradable waste, for saving the environment.
Fill in the following blank with suitable word :
Plastic is a ...............material whereas paper is a.............material.
How does a biodegradable waste differ from a non-biodegradable waste? Give two examples of non-biodegradable wastes which pollute our environment.
Describe an activity to show that while paper is biodegradable but plastic (say, polythene) is non-biodegradable.
What is meant by non-biodegradable waste materials?
Give two examples of non-biodegradable wastes.
What type of substances are the major pollutants of the environment? Name two such substances
Explain why, it is better to use paper bags than plastic bags.
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
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
Write the benefits of recycling.
What is separation of waste?
If you dump kitchen waste in a pit, it may, after sometime
