Gold Has been a precious resource for thousands of years, and the methods of buying and trading it have changed significantly over time. In ancient civilizations, Au was often used as a form of money. People would exchange Au pieces for products and services, which made it a central component https://david676u6r.gigswiki.com/5508071/investigating_the_ecological_and_financial_consequences_of_mining_methods_on_worldwide_au_supply_chains