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Main answer:The small pieces of the Himalayas could form new rock through the process of lithification.Explanation:Lithification is the process through which loose sediment is converted into rock. This process involves the compaction of sediment into a solid mass and the cementation of the grains together. This occurs as the sediment is buried and pressure increases with depth, forcing the grains together and expelling water from between them. Minerals in the water, particularly silica and calcium carbonate, act as cementing agents and bond the grains together. This process can take thousands or millions of years depending on the rate of sedimentation.Conclusion:Therefore, small pieces of the Himalayas can form new rock through the process of lithification, as loose sediment is compacted and cemented together over time. This process is responsible for the formation of many types of rocks, including sandstone, shale, and limestone.