class 8 geography chapter 3
extraction of minerals rocks. from which minerals are mined are known as all's let. us see how the minerals are extracted the minerals are taken out from rocks buried under the Earth's surface. ... balls called shafts take out mineral deposits that lie at great depths.
extraction of minerals rocks. from which minerals are mined are known as all's let. us see how the minerals are extracted the minerals are taken out from rocks buried under the Earth's surface. ... balls called shafts take out mineral deposits that lie at great depths.
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