Final answer:
False. In the '90s, coal and oil were indeed the main sources of energy in the U.S.
Step-by-step explanation:
False. In the '90s, coal and oil were indeed the main sources of energy in the U.S. Coal was used to generate about half of the electricity consumed in the country, and it was the largest domestically produced source of energy. Oil, on the other hand, is a fossil fuel that was primarily used for transportation purposes. However, it's important to note that natural gas also played a significant role in the energy mix during that time.