Dear Thu !
Flood can be understood as a state in which a territory is inundated by floods. A flood is an excess of normal water levels and flow rates in rivers and streams. Flooding occurs when high flood water overflows rivers, streams, lakes, dams and dikes into low-lying areas, flooding houses, trees, and fields.
Flood is also a concept of a tidal rise, or when a storm causes seawater to overflow inland. Flood is divided into three main categories: flash flood, river flood and coastal flood.
People have negative impacts on nature, causing floods, of which deforestation is the biggest cause, especially forests in the watershed of rivers. Forests play the role of keeping land, preventing soil erosion and flooding, the abuse of forest resources deforestation leads to the loss of water retention capacity, when floods occur, water is mainly deposited on the soil surface could not escape, the flow was not obstructed by the forest, causing serious floods
Best friend,
Hoai Anh
