Question

6 ways dust or fumes may be generated in an underground mine

Answer 1

Hey folk.,

^_^

Besides "air," which is made up of primarily approximately 78% nitrogen and 21% oxygen, there are four main gases that concern Workers in a coal mine. They are carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), and hydrogen sulfide (H2S).

hope it helps...

plzz mark as brainliest....