Hydrothermal deposits are related to
A. High temp of magma
B. Residual magma
C. None
D. Both A and B
Answer: Option D
A. High temp of magma
B. Residual magma
C. None
D. Both A and B
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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