The continuous process in which carbon is exchanged throughout the biosphere.

Process by which nitrogen moves through the biosphere

When plants absorb and incorporate nitrogen into organic compounds.

The process of combining nitrogen with hydrogen to form ammonia.

Production of nitrate from ammonia.

types of precipitation

Products of cellular respiration

Element important in proteins, nucleic acids and chlorophyll

Essential element plants need to make important organic compounds

Nitrogen cycle role of breaking down dead organisms into smaller components.

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