Question

why is Gold mining expensive in the kolar region of Karnataka?​

Answer 1

Gold mining is expensive in the Kolar region of Karnataka because those mines now contain very little gold. Whatever gold is there now is deep below the earth. Hence to mine that gold would require digging of very deep mines which is very expensive.

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hope you understand

Answer 2

Answer:

Gold mining is expensive in the Kolar region of Karnataka because those mines now contain very little gold. Whatever gold is there now is deep below the earth. Hence to mine that gold would require digging of very deep mines which is very expensive..