The mineral that constitues 4% of the earth's crust is?

Half of the earth's crust is composed of __________ .

Which one of the following is a non-ferrous metal ?

A continuous process through which old rocks are transformed into new ones is called?

Which one of the following is a Hard rock ?

Which of the following is the Salient feature of metamorphic rocks ?

Which of the following is the most important component of sand and granite ?

Which is the outer most layer of earth?

Which one of the following is organically formed ?

The element present in largest amount in rocks and minerals is