Just like our bodies, Earth's cycles tend to maintain a balance or equilibrium .

The Correct answer is Equilibriumthe earth's cycle cycle tend to maintain the balance or equilibrium of the earth by maintaining the proper amount of water , nitrogen , carbon , phosphorous on earth . Each of the comonent of earth's cycle is equally important because they support life on earth. They are basis of life as carbon is found in abundant amount in all the life forms. Phosphorous, nitrogen and Water is equally important in the human beings as well as in plants and animals Hence , they maintain the equilibrium of earth

Fitness is the ability to perform only very light levels of physical activity.