When developers think about systems, they often think about inputs, processes and outputs.
A river can also be understood as a natural system.
Water input → Flow → Erosion & transport → Deposition → River mouth
The system is influenced by variables including:
Rainfall
Snowmelt
Groundwater
Gradient
Geology
Vegetation
Sediment load
These variables affect how the river behaves.
For example, changes in rainfall can alter discharge, while geology can influence erosion and channel development.
Studying rivers therefore provides an interesting introduction to how interconnected physical systems work.
The Campus Review has a geography guide explaining river types and related concepts.
Explore the guide
https://thecampusreview.com/geography/types-of-rivers/
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