I have several questions about hydrogen that I need help to answer them. gasoline; raw oil; mineral coal; wooden coal; dry biomass Which of the following materials could be use to produce hydrogen? I think they are the oil and the coals. Maybe biomass. Spaceships utilize hydrogen as fuel. It is stored in liquid state at low temperature and high pressure. This storage method is not adequate for domestical uses nor for utilization in transports. How could we store hydrogen to apply as a fuel in our homes and cars? And what are the problems to surpass in order to make hydrogen the fount of energy of the future? Thank you .