Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge Indian Geography Indian Economic and Human Geography
Pulmonary diseases are common to affect the workers in the mining industry. What can be the possible reason for the same?
1
Occurrence of virus in the deep earth
2
Weak immunity due to long working hours
3
Inhalation of fumes and dust during mining
4
More than one of the above
5
None of the above