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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
How can the wastes such as paper, plastic and metal objects be disposed of?
Give a method for the disposal of household wastes such as left-over food, fruit and vegetable peels, and leaves of potted plants.
What is meant by incineration? for what purpose is it used?
Multiple Choice Type:
The most rapidly increasing and much harmful waste today is
What hazards does mining pose to the environment?
Choose the correct option:
Landfill are is a/an:
Choose the correct option:
The rotting of garbage is said to be completed when the garbage:
What is a landfill?
Observe the bins and waste material heaps and suggest what materials can be used for preparing handicrafts materials.
Which kind of garbage is not converted into compost by the redworms?
The steps required for conversion of kitchen garbage into manure are given below in a jumbled form.
- Put garbage in a pit
- Cover the bottom of the pit with sand
- Cover the pot loosely with a gunny bag or grass
- Add worms
Which of the following shows the correct sequence of the above steps?
To what use can you put the following kind of garbage and how?
Dry leaves collected in a garbage
Write 3 sentences on what comes to your mind when you chance to see the following.
A rag picker
What happens when cooking medium is made to flow down a drain?
"The change in packaging has resulted in waste becoming non-biodegradable." Giving two examples from daily life, justify this statement.
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Give two examples of Biodegradable wastes.
Give two examples of Non-biodegradable wastes.
Define the following term:
Waste
