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Nitrogen fixation is a chemical process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil or aquatic systems. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms.
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transition metals
Explanation:
they're the elements in yellow in the picture
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stainless steel
Explanation:
stainless steel would heat up fast because it is made of metal
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Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago.
An example of a physical property of an element is the element’s ability to change state.
For example the melting and boiling points of an element are <em>physical properties</em>.
