Correct Answer:
Option A - Silicate rocks– The principal constituent is silica, i.e. sound the rocks are very hard and durable e.g. granite, basalt, trap etc.
• Unstratified rocks do not show any stratification and cannot be easily split into thin layers.
Ex-Granite, basalt, trap etc.
A. Silicate rocks– The principal constituent is silica, i.e. sound the rocks are very hard and durable e.g. granite, basalt, trap etc.
• Unstratified rocks do not show any stratification and cannot be easily split into thin layers.
Ex-Granite, basalt, trap etc.