86.2k views
4 votes
Why are stones round?

User Weberik
by
7.3k points

1 Answer

5 votes
Because transport of pebbles in a stream causes them to collide and rub against one another and the stream bed, and the resulting abrasion produces the familiar smooth and rounded shape of river rocks.
User Finlaybob
by
8.0k points

No related questions found