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Give another example in which people have changed the physical environment. This question is Geography and the answer cannot include things like building buildings and deforestation.

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Outside of these things, there are many ways that people have changed the physical environment.  Some examples include:

  • Building dams.  Dams create slack water behind them, enlarging rivers and flooding areas that were once dry.
  • Channeling rivers.  The Mississippi River, for example, no longer winds its way all over everywhere.  Instead, it has been kept in a certain channel by levies and such.
  • Farming.  By farming, people replace the natural environment (be it forest, grassland, sagebrush, or whatever) with an artificial environment.  This affects the amount of water that runs off the land when it rains, the types of fauna that can live in a given place, and many other things.
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