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Class 12BiologyEnvironmental IssuesMix Example-Environmental Issues
Easy

When was the Bharat Stage $IV$ emission standard implemented for vehicles in the city?

  • A
    March - $2017$
  • B
    April - $2017$
  • C
    March - $2015$
  • D
    April - $2015$
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Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

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Mix Example-Environmental Issues

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