Across large parts of northern Tanzania, gully erosion – soil erosion caused by flowing water – is cutting deep scars through fertile farmland, grazing areas, roads and even villages. These gullies ...
SIOUX CITY (KTIV) - Gather your supplies! This episode is about erosion and weathering. We will use sand and rocks to simulate what happens after a river flood. Water is powerful, it can grind down ...
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