Final answer:
Earth System Science focuses on understanding the Earth as a complex and interconnected system with various interacting subsystems and spheres.
Explanation:
Earth System Science involves studying the Earth as a complex functioning system comprising various interacting subsystems like the ocean, atmosphere, cryosphere, and biosphere, and how these systems change due to human activity. The Earth system consists of different 'spheres' such as the lithosphere, atmosphere, biosphere, and hydrosphere, each playing a vital role in the overall functioning of the planet. It operates based on a flow of energy that powers its components and feedback processes for internal regulation, making it a dynamic and interconnected system.
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