What type of fuel is the best for the environment?
user
Hm, I don’t really know much about fuels, sorry.  But I could help you find information online about it?  Maybe it would help to explain more about what you’re looking for?
assistant
What type of fuel is the best for the environment?
user
Hm, I don’t really know much about fuels, sorry.  But I could help you find information online about it?  Maybe it would help to explain more about what you’re looking for?
assistant
What type of fuel is the best for the environment?