IGNOU MPA 1 2018 - Write a note on various types of natural disasters

Question

Write a note on various types of natural disasters

05 Feb 2018

Answer :

Word Count : 938

Naturel Types of Disasters

Agricultural diseases & pests
Damaging Winds
Drought and water shortage
Earthquakes
Emergency diseases (pandemic influenza)
Extreme heat
Floods and flash floods

. Hail

Hurricanes and tropical storms
Landslides & debris flow
Thunderstorms and lighting
Tornadoes
Tsunamis
Wildfire
Winter and ice storms

. Sinkholes

Floods

When an expanse of water overflows, it submerges land and destroys everything that gets in its way. This is a flood. Floods are usually caused when the volume of water within a lake, river, or other body of water exceeds the total capacity of the body. Sometimes, the water level rises and causes it to overflow its channel.

Worst Case:

The world has seen numerous floods throughout history, but the Yangtze River floods were the most disastrous ever recorded. They were caused by torrential rains and killed more than 3.7 million people in southern China.

Tornadoes

Tornadoes are violent, rotating, funnel-shaped clouds that usually extend from thunderstorms to the ground and have wind speeds of between 50 and 300 mph. A tornado’s path of damage can exceed 50 miles in some cases. Some tornadoes are clearly visible, while others are not. Similarly, there can be only one tornado at a time or there can be a large number of tornado outbreaks along, what are called squall lines.

Worst Case:

Tornadoes are responsible for causing an average of 70 deaths and over 1,500 injuries in the U.S. each year. The Tri-State tornado that hit Illinois, Missouri, and Indiana in 1925 is still the deadliest tornado of all time with a death toll exceeding 695.

Extreme Temperatures

Extreme temperatures caused by a heat wave or cold wave are one of many climatological hazards. A heat wave increases the temperature in a certain region and pushes the human body beyond its limit. The same is the case with a cold wave that is accompanied with heavy snowfall and extreme cold, which may lead to hypothermia.

Worst Case:

The deadliest heat wave of all

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