General science :
1. Among the following mineral ores which one is the most importance ore of aluminium?
A) Bauxite B) Calamine
C) Calcite D) Galena
Ans : Bauxite
1. Among the following mineral ores which one is the most importance ore of aluminium?
A) Bauxite B) Calamine
C) Calcite D) Galena
Ans : Bauxite
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