Oil and Petroleum use is very efficient.
Cooking oil can be separated by filtration, but certain oils are much more efficient than others in properly filtrating. The best oil for filtration is cottonseed.
i dont know sorry
Natural gas is a much more efficient method of heating a house. Furthermore, heating oil is more expensive, and you must purchase it in bulk.
oil
yes, extreeemly cheap
It does not matter where oil comes from it is bad for the environment shale oil is just a Les efficient source of oil.
they are efficient they give as much detail they can
Yes, much more efficient.Yes, much more efficient.Yes, much more efficient.Yes, much more efficient.
Democracy is very much efficient in India.
There is enough oil in the ground to last for about 10 years unless new technology is invented. There is enough oil tied up in oil shale to last for many centuries when an efficient way of extracting it is discovered. There is enough oil tied up in the oil sands of Canada to provide for the needs of the world for a century if a more efficient process of extracting it is found.
our new air conditioner is much more efficient that our old one