Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes (such as, notably, ammonia, nitrate and nitrogen dioxide).
Nitrogen fixation is performed naturally by certain types of anaerobic bacteria. Legumes such as clover contain symbiotic bacteria of this type within nodules in their root systems, producing nitrogen compounds that help to fertilize the soil. See George Washington Carver.
Nitrogen can also be artificially fixed for use as fertilizer or in other industrial processes. The most popular method is by the Haber process. Artificial fertilizer production has achieved such scale that it is now the largest source of fixed nitrogen in the Earth's ecosystem.
(This is the definition from the http://encyclopedia.kids.net.au/page/ni/Nitrogen_fixation website)
Answer:
It <u>estimates the size or strength of an earthquake</u> but is typically used only for medium or large earthquakes . The moment is the slip on the fault multiplied by the area of the fault surface that slips. The moment is then used to estimate the size of the earthquake by finding the moment magnitude with an equation. <u>It is the only magnitude scale that estimates the energy released from an earthquake.</u>
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Answer: Nervous
Explanation: It's the nervous system
