Question

why could we say that biogeochemical cycles are in "balance"?

Answer 1

In Earth science, a biogeochemical cycle orsubstance turnover or cycling of substancesis a pathway by which a chemical substancemoves through both the biotic (biosphere) and abiotic (lithosphere, atmosphere, andhydrosphere) components of Earth. A cycle is a series of change which comes back to the starting point and which can be repeated.Water, for example, is always recycled through the water cycle, as shown in the diagram. The water undergoes evaporation,condensation, and precipitation, falling back to Earth. Elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another through biogeochemical cycles