Main pollutants released from iron & steel industry is________________ – McqOptions

MCQOPTIONS

1.	Main pollutants released from iron & steel industry is__________________?
A.	CO, CO2 & SO2
B.	H2S, NO & SO3
C.	CO2, H2S & NO2
D.	SO3, NO2 & CO2
Answer» B. H2S, NO & SO3

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