Q. What is a "shaft mine"? (Solved)
1. A query
2. An open pit mine
3. A mine dug deep into the earth
4. A mine for descending into which a shaft is generally used
- c. A mine dug deep into the earth
1. A query
2. An open pit mine
3. A mine dug deep into the earth
4. A mine for descending into which a shaft is generally used