21. Deep structure comprises underlying phonemes and word parts, while surface structure is the spoken sentence. 22. The values obtained depend on the size, quantity and surface structure of abrasive used in toothpastes. 23. The Shiksha Texts and the Pratishakhyas led to great clarity in understanding the surface structure of language. 24. Neither proposal entailed additional offshore surface structures . 25. All the properties which were explained in terms of deep and surface structure were really mistakenly described, 26. The surface structure of a sample can be changed from the ideal in a number of ways. 27. The deep structure ( d-structure ) objects are equal to the surface structure ( s-structure ) subjects. 28. In reality, the surface structure is unimportant. 29. Interference microscopy for industrial inspection, semiconductor inspection and surface structure analysis is highly developed and in widespread use. 30. The final surface structure can be controlled by varying the area covered by colloids and the colloid size.