A deposit must contain at least certain percentage of metal in it and the lowest admissible limit of metallic content of an ore is known as
A. Simple ore
B. Economic ore
C. Tenor
D. Ore mineral
Answer: Option C
A. Simple ore
B. Economic ore
C. Tenor
D. Ore mineral
Answer: Option C
On the basis of which content the igneous rocks are classified as acid rocks and basic rocks?
A. Magnetite
B. Hematite
C. Bauxite
D. Silica
Origin of Solar System divided in two groups, which are
A. Evolutionary and catastrophic
B. Nebula and gaseous tidal hypo
C. Jeansand Jeffires
D. A and B both
A. Attrition
B. Deflation
C. Denudation
D. Mantle
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