The sources of mineral deposits are
A. Volcanoes
B. Hot springs
C. Fumaroles
D. All done
Answer: Option D
A. Volcanoes
B. Hot springs
C. Fumaroles
D. All done
Answer: Option D
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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