HELP! BRAINLIEST TO FIRST CORRECT
1. When it is burned to produce electricity (coal, natural gas, petroleum) emits the most carbon dioxide. This fossil fuel accounted for (1/3, 3/4, 1/2) of the electricity generated in the United States and emitted 68% of the carbon dioxide produced by generating electricity.

Coal

Explanation:

Coal is a fossil fuel formed by the decay of organic matter over prolonged periods under Pressure and in the absence of air.

It then undergoes heat treatment (carbonization) to yield carbon dioxide, methane, water and deposits of a material rich in carbon.

Coal is used mainly as fuel to generate electric power for steam engines, factories and electric plants.