As told earlier, sand is create from worn-out rock. Those rocks ar the sedimentary, metamorphic, or igneous rocks. A sedimentary rock is made up of chemical, mechanical, or organic sediment. Some important types of Sedimentary rock which atomic number 18 distinguished by caryopsis and chemical composition ar sandstone, conglomerate, tillite, shale, sedimentary breccia, chalk, marl, coal, lignite, rock salt, gypsum. igneous rock is rock that is organise by the solidification of ...If you command to get a hard-hitting essay, order it on our website: Orderessay
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