mineral resources: resources that are mined from the earth's crust such as iron ore, bauxite, copper, etc.

conventional resources: traditional resources such as coal, petroleum and natural gas

non-conventional resources: resources such as nuclear energy, solar energy, geothermal energy and wind energy that are of recent origin

bio-mass: a renewable resource energy that is created from the burning of wood garbage and other previously living things that have stored the sun's energy

fossil fuels: energy resources formed within the earth from the remains of plants and animals of million of years ago

water power: or hydropower energy is a renewable energy resource produced by running water

wind power: a renewable energy produced when the wind turns windmills to generate electricity

geothermal power: energy generated by the heat of the earth

nuclear power: energy that comes from powerful force holding the nuclei of atoms together, either through fusion or fission

fission: the process of splitting of atom to obtain nuclear energy

fusion: the process of combining two atoms to obtain nuclear energy

metallic minerals: minerals that contain metallic element