NOTE: ANSWER ALL QUISTIONS Q1) Answer the following questions. (C.. 1- Explain the selection of engineering materials for applications depend on which properties. 2- Why the nanomaterials have outstanding mechanical and physical properties? 3- Draw and explain the differences between crystalline and non-crystalline solids. 4- Draw and explain bond type of NaCl compound atoms. 5. Why the crystalline material is favourite than non-crystalline materials