单词 | nitrogen cycle |
释义 | nitrogen cycle (once / 738707 pages) n WORD FAMILY nitrogen cycle USAGE EXAMPLESHow can we escape our massive dependence on fossil fuels to produce nitrogen fertilizer and how could we enhance the natural nitrogen cycle? Nature(Nov 29, 2016) But the researchers say that it's enough to warrant continued research into evidence for an ancient nitrogen cycle on Mars. The Verge(Mar 24, 2015) Corn is the staple, but beans and squash are also necessary to complete the nutrition and nitrogen cycle. New York Times(Mar 10, 2014) n the circulation of nitrogen; nitrates from the soil are absorbed by plants which are eaten by animals that die and decay returning the nitrogen back to the soil Hyper biological process, organic process a process occurring in living organisms |
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