It depends which non fossil fuel you are referring to.
People use food as a fuel source.
Electricity can be generated by the sun, wind, hydro power, nuclear, fuel cells. Each are formed in different ways.
Fossil Fuels =)
Fossil fuels are a non-renewable energy source.
Fossil fuels are non-renewable. Once we've burnt them, they're gone!
Some examples of non-renewable fossil fuels include coal, oil, and natural gas. These fuels are formed from decayed plants and animals over millions of years and are finite resources that, once extracted and burned, cannot be easily replaced.
fuels that are non reusable.
Non-renewable fossil fuels are: * coal * crude oil (Petroleum) * natural gas
That is where they formed.
fossil fuels are made from hydrocarbons of fossils of early life that has been locked away for millions of years
Fossil fuels are classified as non-renewable sources. Examples of fossil fuels are coal and petroleum. They are termed non-renewable because they were produced organically over millions of years. if the limit quantity of fossil fuels are used up, it will be difficult to replace them.
The main fossil fuels of nonrenewable sources are coal, oil (petroleum), and natural gas. These fuels are formed from the remains of plants and animals that decayed millions of years ago and are finite in quantity, making them nonrenewable resources.
Simple Answer: Fossil Fuels.
Fossil fuels are non-renewable energy resources that come from the remains of ancient plants and animals. The main types of fossil fuels are coal, oil, and natural gas, which are all formed over millions of years from the decomposition of organic matter under heat and pressure.