Process:  - Fault lines appear underground - The fault lines grow over time - The rocks on each side of the fault lines rub against the rocks on the other side of the fault line - The rocks put pressure on each other - The rocks break from the pressure - The breaking of the rocks releases a lot of energy - The energy causes seismic waves - The seismic waves make the earth shake.  Perturbation hypothesis: suppose more seismic waves happens, how will it affect MORE/STRONGER earthquakes.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: yes


Process:  - Aluminium cans are put into a recycling bin - Aluminium cans are then collected and taken to a treatment plant - At the treatment plant the aluminium is sorted and cleaned - Readied for reprocessing - The aluminum cans go through a re-melt process - Turned into molten aluminium - The molten aluminum is made into large blocks called ingots - The ingots are sent to mills and are rolled out into thin sheets - The rolls are ready to be made into new aluminum products.  Perturbation hypothesis: suppose less turned into aluminum happens, how will it affect more turned into aluminum.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: yes


Process:  - Water is heated - The heated water evaporates - The salt is left behind - The evaporated water condenses on a cold surface - The evaporated water is collected - The process is repeated - More salt is removed from the water.  Perturbation hypothesis: suppose there is more salt needed happens, how will it affect more salt is left behind.  Does the supposed perturbation have an effect (direct or indirect) on the process?
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Answer: