Why are fossil fuels classified nonrenewable resources?

Answer 1

It depends where the fuel comes from.

If it comes from a fossil fuel source, like coal, oil or natural gas, then it is non-renewable. When we use these all up, there won't be any more.

If the energy comes from a renewable source, like sunlight, or wind, wave or other kinds of water power, then it is renewable. After we use it, there will still be more tomorrow when the sun shines, or the rain keeps falling.

Answer 2

Because their supply is fixed, for all intents and purposes. Oil and coal are essentially fossilized biomass. It takes a very long time for that transformation to occur, and so, in practical terms, the oil and coal we have today is all there is.

Biomass can be converted into renewable fuels such as biodiesel. Burning biomass releases CO2. However, the CO2 released in this way is the same CO2 that had been captured through photosynthesis while the biomass was growing. On net, then (ignoring emissions related to the energy used in production), no extra CO2 is being introduced into the atmosphere.

The CO2 released by burning oil and coal, by contrast, has been out of the game for millions of years. Putting it back into circulation increases the total amount of CO2 in our atmosphere, adding to the greenhouse effect.

Answer 3

Well they are called non-renewable fuels because you can not re-use those fuels I'm in grade six and i know that