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Explanation:Pottery is the process and the products of forming vessels and other objects with clay and other ceramic materials, which are fired at high temperatures to give them a hard, durable form. Major types include earthenware, stoneware and porcelain. The place where such wares are made by a potter is also called a pottery (plural "potteries"). The definition of pottery used by the American Society for Testing and Materials (ASTM), is "all fired ceramic wares that contain clay when formed, except technical, structural, and refractory products."[1] In archaeology, especially of ancient and prehistoric periods, "pottery" often means vessels only, and figures etc. Of the same material are called "terracottas". Clay as a part of the materials used is required by some definitions of pottery, but this is dubious.
It was the way cave men used to comunicate, it was the only way to tell story’s and “talk” before language was invented
My best answer is UV filters. They are used often to to protect lens against scratches, dust, etc.
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the picture is not clear could your provide a better
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