Na2so4
Coal and oil
because it is
they burn fossil fuels like coal, fuel oil, and oil shale
because crude oil and gas are cleaner to burn
Water and Carbon dioxide?
Coal is less expensive than oil and will be more plentiful in years to come
Oil generally burns hotter than coal. This is because the carbon content in oil is higher than that in coal, resulting in a more efficient combustion process and higher heat output.
coal, gas and oil
yes
Burning coal, oil, and gas produces carbon dioxide, a greenhouse gas that contributes to climate change, as well as other air pollutants like sulfur dioxide and nitrogen oxides that can cause harm to human health and the environment.
Fossil fuels (coal, oil and natural gas).
Oil generally burns at a similar temperature to gas, but hotter than coal. The burning temperature can also depend on the specific type of oil or gas being used.