Q: 66 (CDS-I/2004)

The upper crust of the earth consists mostly of silicates. The acidic rocks containing a larger proportion of silica do not include
I.Dolerite
II. Granite
III.Basalt.
IV.Quartz,
question_subject: 
Geography
question_year: 
2004
question_exam: 
CDS-I
stats: 
0,392,1176,360,392,256,560