inside the gold mines.
gold
They are elements. However, pure iron, gold and copper are produced from naturally occuring ores. In that respect, they are produced.
Gold and fruit juice do not react.
South America
non
100,000
Mines between the Nile River and Red sea produced gold for Egyptian jewelry.
Many countries mined/produced gold. And many countries still do.
Stanford
15%
That it was produced on or after 1960.