Most authentic method for age determination of earth is from
A. Rate of sedimentation
B. Radioactive age dating method
C. Rate of cooling of earth
D. Salinity of ocean
Answer: Option C
A. Rate of sedimentation
B. Radioactive age dating method
C. Rate of cooling of earth
D. Salinity of ocean
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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