5. Non-renewable resources

These resources get exhausted on continuous consumption.

Examples of non-renewable resources: Fossil fuels such as coal, petroleum, natural gas and mineral resources such as gold, silver, iron, copper, bauxite, and others.

Non-renewable resources can be divided into three types. They are:

As the name denotes, metallic resources are resources composed of metals. Most of the metallic resources are hard substances and good conductors of heat and electricity.

Non-metallic resources comprise resources other than that of metals. These are non-hard substances and are poor conductors of heat and electricity.

Fossil fuel resources are fuels formed from the fossilized, buried remains of plants and animals that lived millions of years ago. They are often referred to as fossil fuels and are formed from hydrocarbon. When fossil fuels are burned, they become a great source of heat energy.