Question: ‘Sterilised zone’ around a hazardous chemical industry is an area with __________ km radius around it, in which the total population/inhabitants should be less than 20000 preferably in the upwind direction.
[A].0.5
5
25
50
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.