When fluids in the gaseous form, the metasomatism is called ________

What are the two conditions believed to be required for the formation of igneous rocks?

Which of the following does not provide evidence of shallow water environment?

The grade of coal with very low calorific value is ________

Most prevalent kind of metamorphism is ________

Which type of shale involves both clastic and non-clastic sources?

Pick the organically formed sedimentary rock.

The colour of sandstone not found commonly is ________