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प्रश्न
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Plastic waste
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उत्तर
Plastic is something which we use on a daily basis and has become an inseparable part of our lives. Despite its various uses, one of the major disadvantages of plastic is that it is an environmental pollutant. Plastic is considered non-biodegradable because it is made of very long polymer chains, which take quite a long time to degrade. Moreover, none of the saprophytes contain enzymes to digest plastic and obtain its nutrients. Since plastic is non-biodegradable, its proper disposal is also important or it may lead to problems like choking of sewage system, resulting in overflow of drains and death of animals by consuming plastic bags.
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संबंधित प्रश्न
Why is e-waste harmful? Express your opinion about this.
Identify biodegradable waste from the following:
peels of vegetables and fruits, metallic cans, broken plastic toys, broken glass cover, grass, paper, ball point pen refill
List some of the common wastes produced in mining operation and mention how these can be reused.
Give a reason for the following :
Landfills are coming up fast near large cities.
Mention whether the following statement is true (T) or False (F).
Some of the electronic wastes may contain valuable metals such as copper.
What things does waste contain?
List the biodegradable and non-biodegradable waste products in your school What are the best ways to get rid of this garbage?
Which of the following activities does not reflect responsible behaviour with regard to waste disposal?
Read the items mentioned in Columns I and II and fill in the related process in the Column III
| Column I | Column II | Column III | |
| (a) | Organic waste | Earthworms | (i) ______ |
| (b) | Garbage | Dig pit and fill with garbage |
(ii) ______ |
| (c) | Old newspaper | Paper bags | (iii) ______ |
Correct the definition of certain terms given below by changing only one word.
Compost: Substances converted into manure for use in industries.
What happens when insecticides, motor oil, paints are poured down the drain?
What is meant by garbage?
Write one difference between biodegradable and non-biodegradable wastes. List two impacts of each type of the accumulated waste on environment if not disposed off properly.
Define the following term:
Waste
Distinguish between the following pair:
Biodegradable and Non-biodegradable waste.
