_____________ is derived from the rocks where it flows freely in either liquid or gaseous form.

The moving blades turns the generator to produce electricity is called _____________.

Energy generated from tides is called ___________.

______________ is the raw material for aluminium.

____________ is rich in mineral resources.

_____________ has the widest range of domestic and industrial uses.

Where are large reserves of limestone found in India?

______________ produces very little of petrol and yields asphalt and bitumen almost in solid state.

_____________ is also found in association with copper.

____________ is a black ore formed in igneous or metamorphic rock veins and lodes.