Which type of rocks requires double lining, i.e., temporary and permanent lining? Options: A . &nbspHard rocks B . &nbspCrystalline rocks C . &nbspSoft rocks D . &nbspNon-crystalline rocks

Which type of rocks requires double lining, i.e., temporary and permanent lining

Question - Which type of rocks requires double lining, i.e., temporary and permanent lining?

Options:

A . Hard rocks

B . Crystalline rocks

C . Soft rocks

D . Non-crystalline rocks

Answer: Option C
Answer: (c).Soft rocks

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