Flood

Floods are natural incidents where a dry area or ground is usually suddenly soaked into water. The overflow of rivers, lakes, and oceans or because, in many respects, excessive rain causes flooding. Flood is a type of natural hazard, affecting humans and natural habitats, or even killing them. A flood can also cause severe damage to homes, factories, places in public, etc. for this case to solve this problem is simple, the first is do not cut down many tree because when big rain come and the river can't handle it we still have the tree, secondly is do not throw your garbage into the river.