Low ash and high sulphur content coals are
A. Gondwana
B. Teritiary
C. Archain
D. All of these
Answer: Option A
A. Gondwana
B. Teritiary
C. Archain
D. All of these
Answer: Option A
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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