11. In protected areas, allochtonous sandy parent materials from tsunami deposits may be found. 12. B ) Subsoil : Subsurface layer reflecting chemical or physical alteration of parent material . 13. They form quickly through alteration of parent material . 14. A catena can form on various underlying or parent materials and in different climates. 15. The texture, pH and mineral constituents of saprolite are inherited from its parent material . 16. Parent material transported by streams is called alluvium of which there are three main types.17. Parent material becomes hydrolyzed by the acidic solution to produce minerals and to release cations.18. Phase transformations normally result in the creation of an interface between the transformed and parent material . 19. They are : parent material , climate, topography ( relief ), organisms, and time. 20. Soils formed from lacustrine parent material have low permeability in part because of this high clay content.
