☰
GkSeries.com
✕

Q.

The ambient air quality standard (24 hours average) for lead in industrial area is

[A] 0.65 μg/m3
[B] 0.75 μg/m3
[C] 1.0 μg/m3
[D] 1.5 μg/m3
Answer & Explanation
Option: [D]

NCERT Class 12 Biology Solved Multiple Choice Questions

Read More Environmental Science Questions

Click Here to Read more questions