Size of slack coal
A. 50 - 200 mm
B. 25 - 50 mm
C. 0 - 25 mm
D. above 200 mm
Answer: Option C
A. 50 - 200 mm
B. 25 - 50 mm
C. 0 - 25 mm
D. above 200 mm
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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