Geography, asked by kitti123, 1 year ago

what is rat hole mining​

Answers

Answered by sonasingh9
0

Answer:

Digging of very small tunnels to extract coals ,it is usually 3-4 feet deep in which workers and children enter and extract coal which is practiced in north eastern plane

it can be done in two ways

  1. side cutting
  2. Box cutting
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