Carbon is the element that is always present in fuels like coal, oil, and natural gas.
oil fuels & gas fuels
Gas, oil, and coal are fossil fuels.
Oil and natural gas are fossil fuels.
The three main fossil fuels are coal, oil and natural gas
Things like oil, coal, and natural gas.
Oil and natural gas are both "fossil" fuels.
Fossil fuels in Japan are oil, gas.
Alternatives fuels are fuels that are not made from fossil fuels (coal, oil and natural gas).
Fossil fuels (coal, oil and natural gas).
The colorless and reactive gas produced when fuels like coal and oil are burned is carbon dioxide (CO2). This gas is a byproduct of combustion and is a major contributor to climate change due to its greenhouse gas properties.
gas, oil and coal