Which of the following steps was necessary for the formation of all fossil fuels?

the remains of plants and animals are buried at the bottom of oceans.

carbon bonds break, producing methane gas.

heat and pressure build up on top of decaying matter.

the remains of plants and animals are buried at the bottom of swamps.

C. Heat and pressure build up on top of decaying matter.

Explanation:

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg