5 relations: Chemical cycling, Hydrogen, Index of environmental articles, Methanogenesis, Photohydrogen.
Chemical cycling
Chemical cycling describes systems of repeated circulation of chemicals between other compounds, states and materials, and back to their original state, that occurs in space, and on many objects in space including the Earth.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Index of environmental articles
The natural environment, commonly referred to simply as the environment, includes all living and non-living things occurring naturally on Earth.
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Methanogenesis
Methanogenesis or biomethanation is the formation of methane by microbes known as methanogens.
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Photohydrogen
Photohydrogen is hydrogen produced with the help of artificial or natural light This is how the leaf of a tree splits water molecules into protons (hydrogen ions), electrons (to make carbohydrates) and oxygen (released into the air as a waste product).
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