Question 2
Hydrogen has been used as a rocket fuel. Would you consider it as a cleaner fuel than CNG? Why or why not?
Hydrogen gas is cleaner than CNG. CNG contains hydrocarbons. Therefore, it has carbon contents. Carbon is a form of pollutant present in CNG. On the other hand, hydrogen is waste-free. The fusion of hydrogen does not produce any waste. Hence, hydrogen is cleaner than CNG.