Where does the energy of crude oil and gas come from?

Answer 1

The original source of oil is the dead life forms. The hydrocarbons from the life forms are usually buried so that they do not combine with oxygen. When the hydrocarbons become more saturated with hydrogen, they form oil.

Answer 2

phytoplanktonic material found in marine basins

Answer 3

Petroleum is called a fossil fuel because it was made from the remains of plants. The energy in petroleum came from the energy in the plants and animals.

Answer 4

The sources of petroleum are the decayed plants and animals that lived long ago on our planet.

Answer 5

The energy of crude oil and gas come from buried and transformed organic matter.