Question

when a river overflow it causes......​

Answer 1

Explanation:

Rivers can overflow their banks to cause flooding.

your answer is :- flooding

Hope it helps you ツ

Answer 2

Answer:

Rivers can overflow their banks to cause flooding.

This happens when there is more water upstream than usual, and as it flows downstream to the adjacent low-lying areas (also called a floodplain), there is a burst and water gets into the land.

Explanation:

Hope it works for you☺☺

Stay Happy and Blessed☺❤