The earth consists of four subsystems, across whose boundaries matter and energy flow, the atmosphere (Air), biosphere (living things), hydrosphere(water) and lithosphere(land). The lithosphere consists of the ground formations we walk on, the inner layers, mantle and the crust
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The earth consists of four subsystems, across whose boundaries matter and energy flow, the atmosphere (Air), biosphere (living things), hydrosphere(water) and lithosphere(land). The lithosphere consists of the ground formations we walk on, the inner layers, mantle and the crust