Earth as a SystemThere are two types of systems in mathematics: Open systems, where everything in the system is at the mercy of anything outside of the system, and closed systems, where everything in the system is not affected by anything outside of the system. We can think of the Earth, and each planet within our solar system, as a closed system. Anything that happens on Earth does not, for the most part, affect other objects in our solar system, and visa versa. Essentially, what happens on Earth stays on Earth. It is not a perfect closed system, however. The sun, meteroids and asteroids, among other items, can and do affect us on planet Earth.
Each "sphere" acts and interacts with one another. When you change the conditions in one sphere, that will affect in some way (good or bad) the other spheres.
copyright Sonjia Leyva 2015