Floods means an overflow of a large amount of water beyond its normal limits. Floods are caused by water bodies and also on land. When there are heavy or continuing rains water bodies get more water than they can hold. The water level then rises in the water body and overflows its banks. Such flooding of water bodies also causes the flooding of land beyond the water body. Land may itself also get flooded if there is very heavy rainfall. Continuous rain on otherwise dry land can inundate the land. Floods also get caused in cities where the drainage system is poor. When there are heavy rains such cities get flooded.
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In my city the drainage system is terrible and every time it rains there are sectors that flood and people lose all their belongings, it is very discouraging