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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
Give any two ways in which non-biodegradable substances would affect the environment.
Give a method for the disposal of household wastes such as left-over food, fruit and vegetable peels, and leaves of potted plants.
Define electronic waste and list at least six items which come under this category.
Mention whether the following statement is true (T) or False (F).
Some of the electronic wastes may contain valuable metals such as copper.
Mention whether the following statement is true (T) or False (F).
Electricity is one of the primary needs of human society.
Give Technical Terms:
Any non-biodegradable pollutant.
How is sewage water treated?
What will happen if garbage is left open in bin?
What things does waste contain?
Which kind of garbage is not converted into compost by the redworms?
Which of the following is biodegradable?
To what use can you put the following kind of garbage and how?
Rotting smelly garbage
Beera, a farmer would clear his field everyday, and burn dry leaves fallen on the ground. After sometime he found that those living in huts near his field were suffering from cough and breathing problems.
- Can you explain why?
- Also suggest an environment friendly way to dispose the dry leaves.
Which of the following features relates to biodegradable substances?
Give two examples of Biodegradable wastes.
