They have been deposited there after being weathered and eroded from their point of origin.
sedimentary rocks
Wet rocks.
River bed rocks
sedimentary rocks
Because the river attached to the Sea and then all the rocks or the seashells would go with the river. Tip: river is like a stream.It moves.
River Rocks would be made out of whatever type of rocks are around the river. Although, I would assume not all types of rocks tend to grind into round balls.Granite is very tough, and is a very common type of river rock.
Sediment and small rocks are carried down in the river and are deposited.
minecraft rocks
River rocks, because have smooth edges.
material that a river carries along E.g (stone, grass & rocks)
Large boulders and smaller rocks can be carried by a river. When rocks and sediment are displaced, it's called erosion.
Large boulders and smaller rocks can be carried by a river. When rocks and sediment are displaced, it's called erosion.