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Why is nitrogen scarce in the biosphere?

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As far as the air goes, Tim is correct, nitrogen is the major component. Most plants cannot ingest gaseous nitrogen...although a few do! These plants are greatly responsible for the nitrogen that gets 'fixed' in the soil, so that other plants c... read more

force nitrogen out of soil and vegetation and into the atmosphere When we burn fossil fuels we increase the rate at which nitric oxide enters the atmosphere and reacts to form nitrogen dioxide. read more

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Protecting the Biosphere - ppt video online download
Source: slideplayer.com

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