EESA01H3 Chapter : eesa01 textbook notes

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Earth"s environmental systems: our planet"s environment consists of complex networks of interlinked systems, earth uses cycles that shape the landscapes around us and guide the flow of key chemical elements and compounds that support life and regulate climate. In nature, no system is perfectly closed: energy inputs to the earth"s environmental systems include. Information energy can come in the form of sensory cues from: Inputs of matter occur when chemicals or physical material moves among systems. Migratory animals deposit waste far from where they consumed food: eg. Gulf of st. lawrence receives inputs from the st. lawrence, fishers harvest some of the systems output: matter and energy in the form of fish and plankton. Output becomes input to the human economic system and to the digestive systems of the people who consumer seafood from the st. Lawrence: sometimes a system"s output can serve as input to that same system. This is a circular process known as feedback loop.

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