Metallic minerals are further classified as ________________ and ________________.

__________________ minerals do not contain any extractable metals and are found in sedimentary rocks.

____________ is used for making steel.

__________________ is used in nuclear power plants as fuel and is also used by the army in specialized ammunitions.

__________________ is lightest metal, which is why it is used in the aircraft industry.

___________________ is used for making electric and telephone wires, pipes and coins.

_________________ is a hard black mineral that is found below the earth’s surface and is burnt to produce heat. It is a sedimentary rock that is formed from the decayed remains of plants and trees.

__________________ is a black, greenish or brown liquid found in porous sedimentary rocks in the earth.

__________________ mining destroys the natural vegetation and trees

_________________ mining causes sinking of the land, underground water pollution and surface water pollution, among other things

By practicing the formula of ____________, ___________ and _____________, we can save a lot of our metallic and non-metallic minerals.