Page 25 - POP UP BOOK
P. 25
The second factor is the social factor. This factor is a factor
that often causes flood. It happens because of human
behavior itself which often caused nature damage.
People often throw the trash in the rivers, it is causing the
surface of the river becomes shallow as a result of the trash
piling up.
Some people also build their houses or other buildings in
the area that supposed to be a water absorption area of the
river.
