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Subject :NSO    Class : Class 5

Small pieces of rocks are carried away by rivers and streams and are deposited at newer places. Repeated deposition presses down the lower layers and hardens them into rocks. Examples of such kinds of rocks are____________ .

AGranite, pumice, obsidian
BSandstone, limestone, shale
CMarble, slate, quartzite
DSandstone, conglomerate, gneiss

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