From the passage, we can conclude that ………

“Fill your tank with sunlight, water and earth”, say the posters for Bio-Diesel — an adapted form of plant oil that can be used in cars. The advertising is designed to appeal to the consciences of Germany's environmentally-minded drivers. Will the idea be accepted? Both Greens and the energy industry would love to know. Bio-Diesel's fans say that it is a renewable source of energy and that exhaust fumes from cars using it are far lower than those from oilier cars. In addition, they say, Bio -Diesel is cheaper.