Floods are natural disasters that occur when there is too much rainwater or overflow from river banks. There are different types of floods such as riverine floods caused by heavy rain, coastal floods caused by tidal storms, and catastrophic floods caused by hurricanes. Floods can cause physical damage, casualties, contaminated water supplies, and damage to crops. However, floods also make soil more fertile by providing nutrients. To mitigate floods, coastal defenses like sea walls and barriers have been constructed. Major flood-prone areas include China, Vietnam, Romania, Netherlands, and Bangladesh. Bangladesh frequently experiences monsoon floods from four major rivers that have killed hundreds and affected millions of people.

1. FLOODS Done by:Farizan, Farah,Angie, Si Hui,Amirah

2. What are Floods? an overflow of water a form of natural disaster happens when there is too much rain water from the river bank overflows caused by heavy rains,tides,storms,hazzards etc.

3. Types of Floods... Riverine floods [fast/slow] Estuarine floods Coastal floods Catastrophic floods Muddy floods

4. Causes of floods... Heavy rains from monsoons,hurricanes and tropical depression Intense thunderstorm Sea tidal and storm-forced winds Sea storms,hurricanes,tsunami

5. Consequences of Floods... Primary Effects Physical damage [structure] Casualties [death ] Secondary Effets Water supplies[contaminated] Diseases Food supplies[crops] Trees

6. Benifits of floods... soil becomes more fertile providing nutrients Therefore,crops can grow

7. What have been done... Coastal defences have been made -sea walls,beach nourishment etc. Barriers were built Flood gates were constructed

8. Where do floods occur... China North Vietnam Romania Netherlands Bangladesh etc.

9. Floods in Bangladesh.. Monsoon floods happens due to four rivers [Brahmaputra,Meghna,Ganges,Wang] occured in 1987,1988,1998,2007 a total of 298 people passed away and 10,211,780 people were badly affected Aproximately 59 000 houses were damaged

10. Bangladesh... remains a developing nation too many people [population] mostly work as farmers inefficient use of energy resoyrces insufficient power supllies

11. THANK YOU