Which is common to the formation of all fossil fuels?(1 point) Responses Fossils are converted into carbon-rich fuels. Fossils are converted into carbon-rich fuels. Sedimentary rock is converted into carbon-rich fuels. Sedimentary rock is converted into carbon-rich fuels. Once-living organisms are converted into carbon-rich fuels. Once-living organisms are converted into carbon-rich fuels. Swampy forest plants are converted into carbon-rich fuels.

Answer 1

Once-living organisms are converted into carbon-rich fuels.

Answer 2

Which is the source of the carbon released during fossil fuel combustion?(1 point)
Responses

carbon absorbed from water when the fuels formed
carbon absorbed from water when the fuels formed

carbon from the bodies of organisms that formed fossil fuels
carbon from the bodies of organisms that formed fossil fuels

carbon dioxide recently absorbed from the air
carbon dioxide recently absorbed from the air

carbon from the rocks surrounding ancient dead organisms