discovery of one of the metals led to revolutionary changes in the human life?

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option's are
1.bronze
2.copper
3.iron
4.gold

2007-02-23 05:37:59 · 4 answers · asked by GAURAV S 1 in Science & Mathematics ➔ Chemistry

Bronze is an alloy made from melting copper with oter metals. it was not discovered, it was made.
Probaly iron made the greatest effect on man.

2007-02-23 06:28:04 · answer #1 · answered by science teacher 7 · 0⤊ 0⤋

Look up the Iron Age - man could make tools.

2007-02-23 05:43:29 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋

1. Bronze, as the bronze age came before the iron age.

2007-02-23 05:45:30 · answer #3 · answered by The exclamation mark 6 · 0⤊ 1⤋

gold - people have been killing each other over it for thousands of years.

2007-02-23 08:36:47 · answer #4 · answered by Anonymous · 0⤊ 0⤋