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Geography - Water & Carbon > systems > Flashcards

Flashcards in systems Deck (11)
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1
Q

what is a system?

A

set of interrelated components working towards a process

2
Q

what does a system consist of?

A

stores, flows, inputs and outputs

3
Q

what is a closed system?

A

transfer of energy and not matter

4
Q

what is an open system?

A

transfer of both energy and matter

5
Q

what is an isolated system?

A

no interactions outside the boundary

6
Q

what is dynamic equilibrium?

A

balance between inputs and outputs

7
Q

what is positive feedback?

A

effects are amplified

8
Q

example of positive feedback?(global warming)

A
  • global temp rise
  • global ocean rise
  • dissolved co2 in oceans released
  • more co2 in atmosphere
9
Q

what is negative feedback?

A

effects are nullified

10
Q

example of negative feedback?

A
  • increase in fossil fuels
  • increase of co2 in atmosphere
  • more plant growth (plants consume co2)
  • reduces co2 in atmosphere
11
Q

what is a cascading system?

A

open systems forming a chain