Differentiate between Open cast mining and underground mining

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Sl.
No.|Open cast mining |Underground mining ----------|----------------|------------------- 1\.|Used to extract minerals that are present near the surface of earth.|Used to extract minerals that are buried too deep. 2\.|Also known as open pit mining.| Also known as sub-surface mining.

Geography

Differentiate between Open cast mining and underground mining

Mineral Resources

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Sl. No.	Open cast mining	Underground mining
1.	Used to extract minerals that are present near the surface of earth.	Used to extract minerals that are buried too deep.
2.	Also known as open pit mining.	Also known as sub-surface mining.