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.

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.