11. Ore body contains . . . . . . . .
12. Coal tar, . . . . . . . .% yeild on coal.
13. The fusion temperature of magma is above
14. Age in million year in cretaceous period
15. Sesimic shocks that originate due to crustal movements called:
16. Most authentic method for age determination of earth is from
17. Fold got two hinges called
18. The minerals present only in small quantities in a rock.
19. The type of rock if % of silica less than 45%.
20. Topaz hardness number in Mohrs hardness scale.
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