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Question 13 Marks
Describe the usefulness of incineration of wastes, and also mention the precautions required in it.
Answer
Usefulness of incineration of wastes:

  • It reduces the weight of the waste.
  • It reduces the volume of the waste.
  • It renders toxic wastes into less toxic or even non-toxic wastes.


Precautions required for incineration:

  • It should be carried out at very high temperatures.
  • It should be equipped with pollution control devices.
  • It should be installed away from residential areas.
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[3 marks Question Answer] - BIOLOGY STD 9 Questions - Vidyadip