How Are Potholes Formed in Rivers?

Answer

Potholes are formed in the river by a process known as corrosion. Rocks are carried out to the river and they grind against the bank causing a widening and deepening of the river beds and thus creating potholes.
Q&A Related to "How Are Potholes Formed in Rivers?"
water carries sediment into the rock, which slowly erodes it into a round hole. chalk is a ery soft rock. Source(s)
http://answers.yahoo.com/question/index?qid=201111...
It seems that with the end of winter and the beginning of the spring also comes potholes of all shapes and sizes. Potholes can not only be annoying to navigate, they can also do serious
http://www.ehow.com/how-does_4741138_a-pothole-for...
Ice wedging.
http://wiki.answers.com/Q/How_do_potholes_form
Potholes occur when water gets under the pavement. When the water freezes the ice takes up more
http://www.chacha.com/question/how-do-potholes-for...
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