Natural Cycles: Nitrogen Cycle

The video tutorial explains that while oxygen is crucial for breathing, it is not the most abundant gas in the atmosphere. Nitrogen, making up about 78% of the atmosphere, holds that title. The video further explores how living organisms, including animals and plants, obtain nitrogen, not through breathing but through consumption of other organisms. It also covers the process of nitrogen fixation, where certain bacteria convert atmospheric nitrogen into compounds usable by plants, highlighting the ecological importance of nitrogen-fixing bacteria.

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