Oil and natural gas are predominantly composed of the remains of
A) multicellular animals.
B) phytoplankton.
C) fungi.
D) multicellular plants.
E) gelatinous zooplankton.

Question

Quizplus · Accepted Answer

Oil and natural gas are predominantly composed of the remains of phytoplankton that died millions of years ago and settled on the ocean floor. Over time, heat and pressure caused these remains to be transformed into fossil fuels.

Oil and Natural Gas Are Predominantly Composed of the Remains