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1. (12 pts) Explore the materials around you. Pick a crystalline material, any crystalline material and read about it. (Please cite your source(s) for full credit.) (A) Give a specific example of two defects that are found in this material, either naturally or processed. Please give detailshow are they specifically defects considering the theoretical" crystal? Based on what we have learned in the course and chapter 4, what type of defects are these? (B) How does this defect influence the material properties? Please discuss. If your chosen defect does not influence the properties of the material, frame your answer to demonstrate understanding of these concepts from the course for full credit. (C)Are the defects significant for the applications of the material? Please discuss. If your chosen defect does not influence the application of the material, frame your answer to demonstrate understanding of these concepts from the course for full credit. (D) Are the defects that you chose natural or processed? Discuss one way this material be processed to introduce or alter the defects or defect structure. What influence does this processing have on the material's properties