What are the problems caused by the non-biodegradable wastes that we generate? - Science

Answer in Brief

What are the problems caused by the non-biodegradable wastes that we generate?


Solution 1

The problems caused by non-biodegradable wastes are:

  • The cause is biomagnification.
  • They increase pollution.
  • They make the environment unclean.
  • They kill useful microorganisms.

Solution 2

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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Chapter 15: Our Environment - Exercises [Page 265]


NCERT Science Class 10
Chapter 15 Our Environment
Exercises | Q 7 | Page 265

Video TutorialsVIEW ALL [1]


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?

Which of the following groups contain only biodegradable items?

  1. Grass, flowers and leather
  2. Grass, wood and plastic
  3. Fruit-peels, cake and lime-juice
  4. Cake, wood and grass

If all the waste we generate is biodegradable, will this have no impact on the environment?

Fill in the following blank with suitable word :

Plastic is a ...............material whereas paper is a.............material.

 Describe an activity to show that while paper is biodegradable but plastic (say, polythene) is non-biodegradable.

State one advantage of using jute bags over plastic bags for shopping.

Which of the following materials are biodegradable?
Animal bones, Iron nails, Plastic mugs, Leather belts, Silver foil

What type of substances are the major pollutants of the environment? Name two such substances

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

We should not separate our waste.

Name any five items which are recyclable.

Write the benefits of recycling.

What is separation of waste?

The average person in India produces ______ kg of waste every day.

Expired medicines, used batteries are domestic hazardous waste.

List any four domestic hazardous waste.

If you dump kitchen waste in a pit, it may, after sometime


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