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11.  One of following minerals is found in almost all the rocks:
A. Feldspar B. Carbon
C. Calcium D. None of these

12.  Granite is a:
A. Volcanic rock B. Plutonic rock
C. None of these D. Both (a) & (b)

13.  Quartz is a ______ rock:
A. Plutonic B. Sedimentary
C. Igneous D. Metamorphic

14.  In which of the following is knowledge of underlying rocks least essential:
A. Weather studies B. Road Construction
C. Oil drilling D. Soil analysis

15.  Rocks differ from one another in these respects except:
A. Texture B. Permeability
C. Mode of occurrence D. Salinity

16.  When softer rocks are eroded by sea water _____ are formed:
A. Bays B. Headland
C. Stack D. None of these

17.  When harder rocks are eroded by sea water ______ are formed:
A. Spits B. Headlands
C. Sea caves D. Beaches

18.  Mushroom rock feature is example of ______ feature of wind:
A. Erosional B. Depositional
C. None of these D. Both (a) & (b)

19.  Dolomite:
A. Calcium magnesium carbonate B. Calcium Carbonate
C. Calcium Bicarbonate D. None of these

20.  Rocks of oceanic crust have a density of:
A. 1.0 g/cm3 B. 2.0 g/cm3
C. 3.0 g/cm3 D. None of these




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