Question

Define Open Cast Mining?​

Answer 1

$\huge\underline\mathcal\red{Good\: Afternoon}$

Open-cast mining(strip mining) Mining in which large strips of land are excavated in order to extract materials without sub-surface tunnelling. It may result in short- and long-term environmental damage.

Answer 2

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OPEN CAST MINING:-

WHEN MINERALS ORES ARE LOCATED AT A SHALLOW DEPTH, THEY ARE TAKEN OUT BY REMOVING THE SURFACE LAYERS THIS METHOD IS KNOWS AS DEEP CAST MINING.