Which is common to the formation of all fossil fuels?(1 point)

Question

Responses

Swampy forest plants are converted into carbon-rich fuels.
Swampy forest plants are converted into carbon-rich fuels.

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

Fossils are converted into carbon-rich fuels.
Fossils are converted into carbon-rich fuels.

Sedimentary rock is converted into carbon-rich fuels.

Answer 1

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