In the United States, ________ is the leading source of energy.
a. wood
b. natural gas
c. coal
d. oil
e. nuclear
Answer: d. oil
In the United States, ________ is the leading source of energy.
a. wood
b. natural gas
c. coal
d. oil
e. nuclear
Answer: d. oil
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.