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  PARTICIPATING SCHOOLS
1
 Point Option High School
 Virginia. USA
2
 C S Ramachary Memorial   Matriculation School
 Madurai, India
3
 Wako Kokusai High School
 Wako. Japan
 
 
 
 
  TSUNAMI
  Introduction    Tsunami    Effects    Precautions    Conclusion
Introduction

The earth’s movements are caused by the forces acting from within the earth. They are known as Tectonic factors. They bring about vast, sudden and dramatic changes on the crust of the earth. The earth’s movements can be in the form of mountain building movements, earthquakes or volcanic eruptions.

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Tsunami

Tsunami is caused by world shaking earthquakes and volcanic eruptions beneath the sea. When the earthquake occurs on the sea bed at a magnitude of more than 7.5 on the Richter, they can rise to a great height in the form of Tsunamis or giant tidal waves. They cross the oceans in the form of very low waves, that ships at sea often do not know that a tsunami is passing. They flash through the water at a great speed. When they approach shallow water, they rise to great heights and hit with a great force.

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Effects of Tsunami

Tsunamis surge towards the shore and cause great damage to life and property. They destroy marine eco-systems, causing damage to the shallow sea grass-bed of rich nourishing planktons, which are the vital fish-habitats. Tsunami with its sediments and toxins contaminate aquifers. Agricultural lands get smothered by a crust of salt and sediments. For reusage of such lands irrigation and rainfall are needed.

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Precautions to be taken

This rare phenomena Tsunami can be tackled by taking some precautionary steps. They are as follows:

1. A sea wall can be erected along the coast line, strong enough to withstand the fury of tsunamis.
2. Natural barriers in the form of rocks and vegetation will help in this regard. In the recent tsunami, places
     which had this natural environment suffered less when compared to other parts. Growing more trees
     may help in deflecting the enormous energy released by the tsunami.
3. Permanent constructions should not be allowed within 500 km. of the coast line.
4. Tsunami warning system should be effectively installed in accordance with the international warning
    system.

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Conclusion

Tsunami, a nature’s fury can cause the greatest damage ever possible. Only by taking precautionary measures the damages could be minimized. Lets love nature and live with nature.

 
 
Research : Gowtham & Seeni, CSR
 
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