91. Indian coal field are formed during
92. The original rock of granite in metamorphic it is
93. Joints are formed as consequence of stress . . . . . . . .
94. Specific gravity of Augite
95. The original rock is slate, its metamorphic rock is
96. Hardness of mica
97. The original rock is basalt, its metamorphic
98. In Quartz mineral how many cleavage sets found
99. The discontinuty occured about 2900 km beneath earth surface
100. India coal reserves are percent of world.
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