Answer:
Copper is obtained from chalcopyrite and aluminum is obtained from bauxite.
The two properties of copper and bauxite are,
1,They are good conductors of heat and electricity.
2,They are ductile and malleable.
Answer:
Hernando de Soto was a Spanish explorer and conquistador who participated in the conquests of Central America and Peru and discovered the Mississippi River.
I can't answer your second question since I know nothing about it, my apologies, but I hope that this will help answer about Hernando de Soto.
Another name for economic system could be capitalism.
