Chapter 6.2 The Work of Streams - ppt download

Streams (remember “stream” mean all flowing bodies of water) erode their channels by abrasion (scraping) grinding (sand and gravel act like sandpaper) dissolving (water dissolves soluble materials)
Some of the following photos are graphic.

The Work of Streams. - ppt download

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Dual brine concentration for the beneficial use of two concentrate

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PPT - Streams and Rivers PowerPoint Presentation, free download

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Investigation on vulnerabilities, threats and attacks prohibiting