Oil provides about one-thirds of the world’s energy. Option C is correct.
Oil provide 40% of the total energy used in the world. China is the world's second-largest oil consumer behind the United States.
Oil is a non-renewable source of energy. People use a lot its liquid form. This liquid oil is most commonly in order to generate electricity and as a fuel in cars. For instance, oil is burnt to run steam turbines to produce electricity.
Oil is the largest source of energy in the United States, providing close to 40 percent of all of the nation's entire power needs.
