1. Tsunami

2. Tsunami
A tsunami is a series of water waves caused by the displacement of a large volume of a body of water, generally an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami. Tsunami waves do not resemble normal sea waves, because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves. Tsunamis generally consist of a series of waves with periods ranging from minutes to hours, arriving in a so-called "wave train".

4. Vocabulary
1) Disaster: A sudden accident or a natural catastrophe that causes great damage or loss of life.
2) Resemble: Have a similar appearance to or qualities in common with (someone or something); look or seem like.
3) Combustion: Of a substance which is initiated suddenly and propagates extremely rapidly, giving rise to a shock wave.
4) Detonations: Combustion of a substance which is initiated suddenly and propagates extremely rapidly, giving rise to a shock wave.

5. Write Sentences
1) Which is the most damage causing natural calamity according to you?
2) Did you ever face such calamity?
3) Can tsunamis be predicted?

6. Conversation 1) How will you help the people who survived?
2) What causes tsunamis?
3) What should I do in the event of a tsunami warning?

7. Countries affected by Tsunami
Indonesia Thailand India Malaysia Maldives Sri Lanka Japan Hawaii
HOME – ASSIGNMENT
1)Give synonym : Explosions
2) Give antonym : Displacement
3) Give meaning :
a) Warnings b) Affected c) Disturbances d) Potential
4) Make a sentence using below word :
a) Countries b) Maldives c) Underwater