We cannot see the picture clearly it is blurry.
The use of more resources lead to a decrease in resources, therefore the need for more resources. More people means the more need for shelter. More people means more industrialisation to provide for the needs and wants of life.
It is Gravity.
Hope this helps.
They are used for them to adapt to the environment
Both cycle occur within the atmosphere but the difference that they have is at the rate with which they occur. Phosphorus cycle is one of the slowest form of matter cycles that occur on earth as compared to the carbon cycle.