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Class 12BiologyEnvironmental IssuesAir Pollution and Its Control
Easy

The major cause $(80\%)$ of air pollution in big cities is due to

  • A
    Transportation by automobiles
  • B
    Industrial activities
  • C
    Use of insecticides
  • D
    Radioactive fallouts
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Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

Subtopic

Air Pollution and Its Control

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