Coal energy facts
Coal is non-renewable energy source.Coal, together with oil and natural gas belongs to fossil fuels.Coal was formed about 300 million years ago.Coal is a combustible mostly black sedimentary rock composed mostly of carbon and hydrocarbons.Coal takes a million years to create and therefore it belongs to non-renewable energy sources.Coal mining uses two methods: surface or underground mining where
0 Response to "Coal energy facts"
Post a Comment