Explain any four causes of floods along with real life examples
Question
Explain any four causes of floods along with real life examples
Solution
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Heavy Rainfall: This is the most common cause of floods. When there is a prolonged period of heavy rainfall, rivers and other water bodies can overflow their banks, leading to flooding. For example, in 2019, heavy monsoon rains caused severe flooding in the Indian states of Maharashtra, Kerala, and Karnataka, displacing hundreds of thousands of people.
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Melting Snow and Ice: In areas with heavy snowfall, rapid melting of snow and ice in the spring can cause rivers to overflow and flood surrounding areas. This was the case in 2019 in the Midwest United States, where rapid snowmelt combined with heavy rainfall caused widespread flooding across several states.
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Dam Failure: If a dam breaks or fails, the sudden release of a large volume of water can cause a flood downstream. In 1975, the failure of the Banqiao Dam in China caused one of the deadliest floods in history, killing an estimated 171,000 people.
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Urbanization: As cities grow and natural landscapes are replaced with concrete and asphalt, the ability of the land to absorb rainwater decreases. This can increase runoff into rivers and streams, leading to flooding. For example, the 2011 floods in Bangkok, Thailand were partly attributed to rapid urbanization and inadequate drainage systems.
Similar Questions
The melting of the polar icecaps which is the cause of flash floods from all over the world is an example of:
Directions: Fill in the blanks. Choose the correct answer in the box below. injured drown flooding mudslides devastating When it rains heavily for a long time, it can cause ________, which happens when water covers land that is usually dry. Human can be _____________, killed, and lost during typhoons. Flooding can cause people to ___________, houses to be completely destroyed, property to be swept away, and farms to lose all of their crops to the winds and relentless rains. Typhoons cause major ______________, which can drown animals and destroy their natural environments. _______________ often take plants down with them, ripping up their roots and killing the plant. The heavy and persistent rainfall and coastal storm surges that typhoons bring can also have _______________ effects.
3 ★ Choose the correct word. 1 There is a drought/flood because it hasn't rained for months. 2 After the earthquake/hurricane there were some aftershocks. 3 When the tornado/tsunami hit land, it washed lots of houses away. 4 The disaster affected/caused thousands of people. 5 The island supplies/suffers from power cuts every time there is bad weather. 6 The rescue/rebuild teams were able to save many people from the rubble.
Identify if the following hazards have Primary, Secondary or Tertiary Effect: Water damage caused by flooding
Present at least 3 causes and their effects on the environment.
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