Nutrient cycle

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Science and technology

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What Wikipedia says

A nutrient cycle (or ecological recycling) is the movement and exchange of inorganic and organic matter back into the production of matter. Energy flow is a unidirectional and noncyclic pathway, whereas the movement of mineral nutrients is cyclic.

Excerpt from the Wikipedia article “Nutrient cycle”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Original: Hannes Grobe 19:13, 20 June 2007 (UTC), Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Derivative: باسم, CC BY-SA 2.5, via Wikimedia Commons.