1. How they affect people….

2.  When a tsunami wave comes ashore, it can affect a huge area of land, transforming the landscape. First, a tsunami wave throws salty seawater over the land. Too much salt is bad for living things, so if soil becomes to salty, crops cannot grow or will not grow well. In addition, The force of a tsunami can also ruin pipelines and factories. This lets out sewage, oil, or dangerous chemicals into the environment. It can take many years. for the environment to go back to normal.

3.  Tsunamis can cause a lot of damage by crushing buildings, sweeping people of their feet, and also dirtying the pipes, consequently spreading disease. Every time a tsunami occurs there are a lot of lives lost. Tsunamis also destroy the crops and flood the city. The impact is strong enough to break a building in half.

4.  The devastation in southern Asian areas hit by tsunami waves this weekend had far less of an economic impact than it might have, given the extreme poverty of many of the regions.  But the sheer scale of dealing with the human tragedy itself could have its own effect on those economies, and other economic costs could also begin piling up, especially if disease spreads because of unsanitary conditions.

5.  On December 24, 2004, the people of South Asia and East Africa were unexpectedly hit by a tsunami. This natural disaster resulted in tremendous destruction throughout these areas. However, Sri Lanka was particularly affected. In Sri Lanka, the tsunami resulted in 31,187 deaths, 4,280 missing people, 23,189 injured people, and the displacement of 545,715 people.  As would be expected, this natural disaster had an immediate psychological impact on those who had been exposed to the event in Sri Lanka. It was found that 3 to 4 weeks after the tsunami, 14% to 39% of children had PTSD. And in another study, 41% of adolescents and approximately 20% of those adolescents' mothers had PTSD 4 months after the event.

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