21. In palaeontology the conversion of remains of plants and animals into rock is known as
22. Seismic shocks that originate due to crustal movements are defined as
23. A deposit must contain at least certain percentage of metal in it and the lowest admissible limit of metallic content of an ore is known as
24. Large lave flows give rise to flat topped mountains and plateaus called as
25. Colour of Olivene is generally
26. In order to calculate useful heat value in Kcal per Kg of non-coking coal, besides ash percentage what is the name of other character which is considered?
27. The branch of Geology that deals principally with the mode of occurrence, origin, distribution, classification and association of all minerals and rocks of economic importance is called
28. Colour of Galena
29. The nature of eruption of volcano is principally guided by
30. Protodyakonov strength number is used to denote
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