Physical geography: Water and carbon cycles: Systems concept.

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1. Idenitfy one factor that can cause disbalance in the system.

  • Large storm events- storm surges.
  • The day of the week.
  • How old the system is.
  • The time that it takes the inputs to enter the system.
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2. What is an isolated system?

  • They have no interaction with anything outside of the interaction boundary. No input of energy or matter.
  • A system that is closed.
  • A system that transfers both energy and material.
  • A system that has interactions outside of the system boundary.

3. identify one incorrect charcteristic of systems

  • Only SOME systems exchange energy/matter beyond their defined boundary.
  • Different parts of the system are connected and intergrated together.
  • Systems accuratley show the reality of what is happening in systems.
  • Systems are a generalisation of reality- give an idea of what is happening in a system, but the reality is more detailed.

4. Define positive feedback.

  • The inputs and outputs of the system are reduced by one change, which further reduces the inputs into the system.
  • Enhances and effect, which has an impact on the process- leading to a "SNOWBALL EFFECT."
  • The inputs and outputs of a systems are made level.
  • The effect of a change does not influence the processes in the system.

5. Identify one characteristic of systems

  • There are no relationships between the processes of systems.
  • All systems transfer both energy and matter.
  • Function in the same way- involves inputs and outputs of material (energy/or matter).
  • They do not follow a specific structure.
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