it could settle on the rivers and seas and can cause respiratory problems.
Runoffs can cause serious flooding and erosion, and can carry contaminants into rivers, lakes, and oceans.
Two problems that the rivers cause for people is flooding, and pollution so it is harder to clean to be able to drink.
we need rivers to survive cause we need water
they cause no problems
salination of rivers for one
Not only can, but do cause it. Daily and when they flood.
Gravity
Well, mostly rivers where there is a lot of rain. All rivers could flood with enough rain.
deseases
They cause the same problems American kids. Cause
floods, and other stuff