Topic
Erosion
3 questions tagged Erosion — spanning every one of the seven Ws.
why
Why do some mountains have a sharp, jagged shape?
Sharp peaks usually form where ice and frost carve away rock on several sides at once. Erosion by glaciers can leave narrow ridges and horn-shaped summits.
GeologyErosion
why
Why are some riverbanks curved and undercut on the outside of bends?
The outside of a bend has faster water, which has more energy to erode the bank and carve a steep cutbank.
RiversErosion
why
Why do some waterfalls sit inside narrow gorges?
A waterfall can cut upstream into rock, leaving a steep-sided gorge where the fallen rock has been eroded away over time.
WaterfallsErosion