Course: Science Subtest I
Lesson: Earth's Resources
Topic: Fossil Fuels III: Coal      Page 17 of 18  

Final Diagnostic Question

 



5. One disadvantage of coal gas compared to coal is

ACoal gas is more expensive.
BCoal gas creates more pollution.
CThe technology to make coal gas is not well developed.
DCoal-gas plants are inefficient at generating electricity.