pedernal

pedernal

A kind of hard, rock with a glassy opaque appearance. It was a favorite raw material for many prehistoric humans for the manufacture of tools such as knives and scraping implements.

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Actividade/ Sector: Anthropology
Category: Physical anthropology
Company: Palomar College
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Actividade/ Sector: Fruits & vegetables Category: Fruits

banana

The world's most popular fruit. The most common U.S. variety is the yellow Cavendish. They are picked green and develop better flavor when ripened off ...