If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur.?

50
500
1000
3000 (i.e. 0.3%)

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Answer: Option 4

4 views Answered 2022-09-01 13:21

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