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Notice that:

Notice that:. There are more impervious surfaces in urban areas than in suburban or rural areas. The higher the amount of impervious surface in an area, the higher levels of salts there are. SO…. The amount of salts INCREASES! ↑.

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Notice that:

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  1. Notice that: • There are more impervious surfaces in urban areas than in suburban or rural areas. • The higher the amount of impervious surface in an area, the higher levels of salts there are. • SO…

  2. The amount of salts INCREASES! ↑

  3. BES Stream Sampling Areas(Image from: http://www.ecostudies.org/bes/frame4-page_3f_05.html)

  4. Now, use your models to compare the location of our school to where the data is being collected. • Are we in a rural, suburban or urban area? • Do we have more or less impervious surfaces? • Do we have more or less salts in our water?

  5. We live in an urban area in Baltimore city. We have a large amount of impervious surfaces in our neighborhood. Therefore, scientists have measured a lot of salts in our water.

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