The first step in the making of a machine is
A. metals are cast and wrought
B. metals are hammered to design
C. metals are taken from the ore-bed and the mine
D. metals are melted in the furnace
Answer:C
The first step in the making of a machine is
A. metals are cast and wrought B. metals are hammered to design C. metals are taken from the ore-bed and the mine D. metals are melted in the furnace