Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge Geography (World Geography) World Economic and Human Geography
Who is the spine of modern industries?
1
Water and Air
2
Cotton and Jute
3
Iron and Steel
4
More than one of the above
5
None of the above