Question

which of the following best describes where fossil fuels come from?
o decayed animals
o the hardening of nitrogen oxides
o decayed plant material
o the merging of iron, lead, and zinc

Explanation:

Fossil fuels are formed from the remains of ancient plants and animals that have been subjected to heat and pressure over millions of years. The main source is decayed plant material which undergoes chemical changes to form coal, oil, and natural - gas. Decayed animals also contribute but to a lesser extent compared to plant material. Hardening of nitrogen oxides, merging of iron, lead, and zinc have no relation to fossil - fuel formation.

Answer:

decayed plant material