state gov Chhatisgarh (CG) Police Constable Mock Test 2023-24 General Knowledge Geography (World Geography) World Economic and Human Geography
Coal mining in Jowai and Cherapunjee, done by family-members in the form of a long narrow tunnel, is known as:
1
Skunk hole mining
2
Rabbit hole mining
3
Earthworm hole mining
4
Rat hole mining