The cyclical flow of nutrients within an ecosystem is called the bio-geo-chemical cycle.
Climatic changes and human activities seriously affect the speed, intensity and equilibrium of these cycles.
We should make all efforts to maintain this equilibrium in nature.
The equilibrium of oxygen and carbon dioxide gases in the atmosphere is maintained by plants. We should avoid cutting down of trees.
We should also cut down the use of fossil fuels, and petroleum products in our vehicles. Instead we should use CNG, or electric cars.
