Nutrient Cycles
Oxygen Cycle
The inorganic substances e.g. carbon, hydrogen, oxygen, nitrogen, phosphorus etc. within an ecosystem can be used over and over again. They are in limited supply. Therefore they have to be cycled and re-used.
Different important nutrient cycles are:
The Oxygen Cycle
The Carbon Cycle
The Water Cycle
and the Nitrogen Cycle
Different important nutrient cycles are:
The Oxygen Cycle
The Carbon Cycle
The Water Cycle
and the Nitrogen Cycle