Natural gas ________.
a. primary component is octane
b. produces less carbon dioxide per energy unit than coal or oil
c. discovered by M. King Hubbert in 1885
d. will be depleted by 2030 at current usage rates
e. is transported primarily by truck and rail
Answer: b. produces less carbon dioxide per energy unit than coal or 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.