Q1 of 24 Page 298

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Open cast mining is also called ……………….. .

Open cast mining is a surface mining technique or extracting rocks or minerals from the earth by their removal from an open pit or directly from earth surface.


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Mining is also known as a ………….. Industry.

 1

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Minerals are non-renewable ……………….. .

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Mica is used in ……………….. Industries.

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………………. Are tower like features in the oil fields.