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Natural Disasters

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by

Candice Leigh

on 24 January 2014

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Transcript of Natural Disasters

Natural Disasters
A hurricane is a powerful storm system with a large low pressure center that produces intense winds and heavy rainfall.
Hurricanes can cause billions of dollars worth of property damage ever year to man-made fixtures as well as to natural surroundings.
These storms can also change an area's landscape; resulting in hills, roads and trails to wash away.
It can cause death or injury, but more likely, possible destruction of property and belongings.
HURRICANE
EARTHQUAKE
TORNADO
TSUNAMI
FLOOD
WILDFIRE
DROUGHT
VOLCANIC ERUPTION
AVALANCHE
LANDSLIDE
Natural events such as volcanic eruptions and meteor impacts can cause earthquakes, earthquakes are triggered by movement of the earth's plates.can be so tremendously destructive, they occur by the thousands every day around the world.
Earthquakes are one of the most powerful natural forces on earth and regularly affect people.Earthquakes can destroy settlements and kill many people. Aftershocks can cause even more damage to an area.
Tornadoes are massive thunderstorms that are very disastrous, destroying property and lives.
Tornadoes are caused by the mix of cold and hot air, which brews a thunderstorm with an updraft.
Tornadoes are usually accompanied by lightning, rain, wind and hail.
Tornadoes effect the environment by destroying buildings and trees. Tornadoes also kill animals, which effects the food chain and disrupts the whole environment. Tornadoes destroy our farms, which means there will be food shortages around the surrounding area. After everything is destroyed, humans have to rebuild.
The word “Tsunami” is a Japanese word represented by two characters: Tsu and nami.
Tsu means harbour and nami means wave. A tsunami can last for SEVERAL hours.
Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea. Out in the depths of the ocean,tsunami waves become extremely large in height, it causes devastating property damage and loss of life.
They are often caused by earthquakes and floods. The effects of landslides are negative.
They can cause damages in property and roads that are very extensive and can even lead to loss of life.
A landslide is the movement of rock or other materials by falling, toppling, sliding, spreading, or flowing, debris or earth down a slope
Flooding occurs most commonly from heavy rainfall can be caused by a storm surge associated with a tropical cyclone, a tsunami or a high tide coinciding with higher than normal river levels.
Floods are common natural disasters that can affect millions of people around the world.
They destroy houses and buildings, and carry soil away from valuable farming land.
CAUSES & EFFECTS OF FLOODING
CAUSES & EFFECTS OF EARTHQUAKE
CAUSES & EFFECTS OF HURRICANES
CAUSES & EFFECTS OF TORNADO
CAUSES & EFFECTS OF TSUNAMI
CAUSES & EFFECTS OF LANDSLIDE
Either man or nature can cause of wildfire.
Lightning strikes or the sun's heat can spark a fire,
especially in dry conditions.
Human carelessness also can start a wildfire - including
campfires, smoking, fireworks or improper trash burning.
The main cause for drought is lack of enough rain. However, there are some other factors that contribute to this such as human activities that include over farming, deforestation and erosion.
The many effects of drought can be listed as economic, environmental, or social like damage to crop quality, less food production, reduction and degradation of fish and wildlife habitat.
CAUSES & EFFECTS OF DROUGHT
A volcano is an opening in the ground where magma forces its way to the surface. Magma which reaches the earth's surface is called lava. Volcanoes can be active (erupting), dormant (sleeping) or extinct (no eruption for 10,000 years and unlikely to erupt again).
Volcanic eruptions produce a number of toxic gases which can damage the environment some of the effects are that many people are killed and a large number of people are forced to desert their homes and land forever.
CAUSES & EFFECTS OF VOLCANIC ERUPTION
Avalanches can cause death, damage properties and interrupt transportation corridors.
In a harsh winter, avalanches can close mountain highways.
An avalanche is any amount of snow sliding down a mountainside. It can be compared to a landslide, Avalanches are caused by many natural factors such as snowfall, snowpack conditions, temperature and wind direction.
CAUSES & EFFECTS OF VALANCHE
CAUSES & EFFCTS OF WILDFIRE
BEFORE INTENSE STORMS:
•Have a disaster plan.
•Become familiar with the land around you. Find out if you’re in a mudslide prone area.

DURING INTENSE STORMS:
•Stay awake and alert.
•If you live in mudslide prone areas, consider leaving if it safe to do so. If you can’t, go to the highest level of your home.
•Listen for unusual sounds that might indicate moving debris, such as trees cracking or boulders knocking each other.
•Be alert especially when driving. Watch the road for collapsed pavement, mud, fallen rocks and other indications of a possible debris flow.

DURING A MUDSLIDE:
•Quickly move out of the path of the mudslide.
•If you can’t escape, curl into a tight ball and protect your head.

AFTER A MUDSLIDE:
•Stay away from mudslide areas.
•Check for injured or trapped people near the mudslide, without directly entering the area.
•Watch out for flooding which can happen after a mudslide.
•Check the foundation of your home, chimney and surrounding land for damage.

http://www.weatherwizkids.com/index.htm
http://listverse.com/2007/10/20/top-10-natural-disasters/
http://www.edu4hazards.org/index_en.html
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