give a narrative reports about the four subsystems in earth
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give a narrative reports about the four subsystems in earth
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Scientists increasingly view Earth as a dynamic system – a combination of interrelated, interdependent or interacting parts forming a collective whole or entity. On a macro level, the Earth system maintains its existence and functions as a whole through the interactions of its parts, called components. At a lower level or micro level, it is helpful to think of the Earth system in terms of four central components known as the subsystems – the hydrosphere, geosphere, atmosphere and biosphere.
These subsystems are interconnected by processes and cycles, which, over time, intermittently store, transform and/or transfer matter and energy throughout the whole Earth system in ways that are governed by the laws of conservation of matter and energy. The energy that drives these processes comes mainly from the Sun and sometimes from energy sources within the Earth.
Examples of some of these processes include evaporation, erosion, convection currents, transpiration, photosynthesis or weathering. They can occur at different rates and in different places over time.
A cycle is a collection of connected, on-going processes that circulates a common component throughout a system – such cycles are continuous with no beginning or end. Examples in the Earth system include the rock cycle, the food chain, the carbon cycle, the nitrogen cycle, the water cycle and energy cycles.