when'll a river face an accident?

Answer 1

when it runs into a rock? lol idk check ya later ♥

Answer 2

An earth quake can damage the river very much. It my get its course changed, pass into a ravine and vanish, create an ox-bow lake, water falls, lakes, artesian wells, springs, split into distributories,

Answer 3

when it runs into a
bed of rocks!!