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Environmental Science
2.1 Environmental Systems
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Cards (11)
System
; a network of interdependent components and processes with materials and energy flowing from one component to another
Closed System
; no matter exchanges with the surroundings
Open System
; those that receive inputs from their surroundings and produce outputs that leaves the system
Negative Feedback
; decrease a process or component
Positive Feedback
; increase a process or component
Feedback Loops
help stabilize systems
Equilibrium
; a relatively stable state that keeps populations sizes within sustainable range
Examples of Disturbances:
Fire
Flooding
Climate Change
Invasion of New Species
Destructive Human Activities
Resilience
; the ability to return to a previous condition from being in a disturbance
State Shift
; adapt to the current condition, not going back to previous condition
Emergent Properties
; properties that are entirely unexpected and includes emergent phenomena in materials and emergent behavior in living creatures