You are presented with the question "What can ancienty buried plants produce?" and the following answer choices: 
- nutrients
 - heat energy
 - scattered light
 - food and shelter
 - Earthworms
 - energy
 - eukyarotes
 - electricity

Now knowing that coal is used to produce electricity by burning in coal-fire power stations and coal comes from anciently buried plants, and petroleum is from animals, choose the best answer.


 

        electricity 