When a coal is heated to a temperature above 600°C is said to be
A. Carbonised
B. Oxidised
C. Aduration
D. Bituminisation
Answer: Option A
A. Carbonised
B. Oxidised
C. Aduration
D. Bituminisation
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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