Difference between revisions of "Hydrogen"
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==Biological significance== | ==Biological significance== | ||
| − | The metabolism of [[human|human beings]], [[:category:animals|animals]] and [[ | + | The metabolism of [[human|human beings]], [[:category:animals|animals]] and [[microbes]] depends on water, composed of hydrogen and [[oxygen]]. The human body contains about 70% water. Human beings need about 2 liters water per day for drinking, hard working people need even more. |
==Production== | ==Production== | ||
Revision as of 09:23, 5 December 2007
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Abundance: {{{abundance}}}
Hydrogen (periodic table symbol: H1) is a chemical element that can be found in the atmosphere and in frozen water on Mars.
Biological significance
The metabolism of human beings, animals and microbes depends on water, composed of hydrogen and oxygen. The human body contains about 70% water. Human beings need about 2 liters water per day for drinking, hard working people need even more.
Production
Hydrogen can be produced by electrolysis of water.
