(a) Crystalline granular rocks are formed when magma is cooled suddenly (b) Stones formed due to chemical reactions are crystalline (c) Granite can be easily dressed (d) Carving work can be done on sand stones Answer: (d)
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(a) XL (b) XC (c) R (d) Z Answer:(c)
(a) Y=VI (b) Y=I/V (c) Y=V/I (d) Y=Z Answer: (b)