Positive feedback
What Positive feedback means in Geography A-Level, as defined for AQA.
Definitions of Positive feedback
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Reference: AQA
In the PRP model, a process that amplifies changes, as when population growth drives resource extraction, increasing pollution and degrading resources.
A process that amplifies change away from equilibrium, such as storm erosion removing vegetation and leading to further dune loss.
Topics that use Positive feedback
- Coasts as natural systems (AQA A-Level)
- Principles of population ecology and their application to human populations (AQA A-Level)
Related terms
- Negative feedback
- Carrying capacity
- Dynamic equilibrium
- Landform
- Malthusian
- Neo-Malthusian
- Optimum population
- Underpopulation
Using Positive feedback in the exam
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