forms from wind blowing sand and depositing it around debris, sand dune, forms when rivers carve away rock, canyon, forms when glaciers move down mountains, u shaped valley, forms when rivers carry and deposit sand at the mouth of the river where it empties into an ocean, delta, breaking down of rock, weathering, carrying away of rock, erosion, dropping rock in a new location, deposition

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?