Ap environmental science vocabulary
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Last updated 2:11 PM on 8/26/26
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7 Terms
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Open system
A system in which exchanges of matter or energy occur across system boundaries
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Closed system
A system in which matter and energy exchanges do not occur across boundaries
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Input
An addition to a system
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Output
A loss from a system
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Steady state
When input equals output
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Negative feedback loop
When a system responds to change by returning to its original state or by decreasing the rate of change
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Positive feedback loop
When a system responds to change by increasing the rate at which the change is occurring