Currently, most hydrogen is made this way from natural gas. An electrical current can also be used to separate water into its components of oxygen and hydrogen. This process is known as electrolysis. Some algae and bacteria, using sunlight as their energy source, even give off hydrogen under certain conditions.
Originally, metal roofs were made of corrugated galvanized steel: a wrought ironâsteel sheet was coated with zinc and then roll-formed into corrugated sheets. Another approach is to blend zinc, aluminum, and silicon-coated steel.
What are paper clips made out of? Quick Answer. Most paper clips are made out of galvanized steel wire, which is made from iron, carbon and zinc. In a fast process, galvanized wire is fed off a spool into a machine and transformed and bent as it passes through. Continue Reading. Hundreds of paper clips are created per minute in paper clip-making machines.