Biochemical cycle
In earth science.Biochemical cycle or substance turnover or cycling of substance is a pathway by which a chemical subtance moves through both the biotic (bioshpere) and abiotic (lithosphere, atmosphere, and hydrosphere) components of earth.
Water cycle
The water cycle is the journey water as it circulates from the land to the sky and back again.The sun's heat provides energy to evaporate water from the earth's surface.
Carbon cycle
The carbon cycle is when carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
Nitrogen cycle
which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.