Первести текст не пользуясь переводчиком. floods happen when there is more water in a river or lake than that body of water can handle. this extra water then spills out onto the land causing a disaster. the damaging effects of a flood can be great. flood waters destroy everything in their path buildings, bridges, roadways etc. entire crops can be ruined and people and animals can die from drowning. even after flood waters retreat, the problems can continue. water can be dangerous to drink, people can get sick from diseases, and there can be food shortages. economic diffraction be felt for years. those who stay have to spend a lot of money to rebuild their houses. fortunately, countries which suffer from floods have found ways to control destructive flood waters by building huge mechanical barriers to protect them. nothing, however, is a guarantee. in 2005, this system failed in new orleans when the storm hurricane katrina hit caused more than 50 breaks in levees* (walls raised to prevent a river from overflowing) and resulted in 80% of new orleans being flooded. in some areas the ground lay beneath 4.5 metres of water! those not evacuated had to swim for their lives or remain trapped on their rooftops!