Question

Hydrogen has been used as a rocket fuel would you consider it cleaner fuel than CNG? Why or why not?​

Answer 1

Answer:

yes because hydrogen when burnt produces water and CNG when burnt produces carbon di oxide which leads to GREEN HOUSE EFFECT

also the calorific value of hydrogen is the highest

Answer 2

Answer:

Yes, because the burning of hydrogen releases water and burning of CNG produces carbon dioxide. This gas cause greenhouse effect on the earth .

Hope it hèlps