Clastic and chemical sedimentary rocks
Explanation:
Clastic sedimentary rocks form from the clustering together of weathered rocks, while chemical sedimentary rocks form from the precipitation or separation of dissolved minerals from water.
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Ocean plate because it is more dense
Nomadic travelers in central and east Asia were able to survive the harsh conditions of the tundras by adapting to the harsh environment that is engulfing the area or region. Also they keep moving with their hut or shelter and also may uses oxen for transportation and carrying logistics.
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