The delicate instrument that records earthquake is known as
A. Magnitude scale
B. Rikhter
C. Seismographs
D. Vibscanner
Answer: Option C
A. Magnitude scale
B. Rikhter
C. Seismographs
D. Vibscanner
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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