Lateral erosion  - The widening of the river channel or valley, Vertical erosion - Deepening of the river bed, mostly caused by hydraulic action action, Sediment - Consists of rocks and minerals, Abrasion - When pebbles grind along a rock platform and become smooth, Deposition - The settling of sediment,

river keyterms

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?