I – The Hydro logical cycle
II – The Gaseous Nutrient cycles
III – The Sedimentary element cycles
All the three cycles have certain characteristics in common such as: -
I. Reservoirs: are those parts of the cycle where the chemical is held in large quantities for long periods of time.
II. Exchange pools: are the places where the chemical is held only for a short time period.
III. Residence time: is the length of time a chemical is held in an exchange pool or a reservoir
marto answered the question on March 20, 2019 at 10:44
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