4. Problems: Hurricane: accumulated storms. Hurricanes form when a series of thunderstorms accumulate and move over warm ocean waters. Tsunami: The tsunami waves are formed as the displaced water, which moves because of gravity, attempts to return to a stable position. Twister: El aire dentro del embudo gira cada vez con más rapidez y genera un área de muy baja presión, la cual, succiona más aire (y posiblemente objetos) dentro de sí. The air inside the funnel rotates increasingly faster and generates an area of very low pressure, which sucks more air (and possibly objects) within it. Flood: This type of natural phenomenon has been present throughout history, mainly caused by the overflowing of a river due to rain, tropical storms, hurricanes, and sometimes by humans, such as deforestation, the location of housing low and near rivers or in places prone to flooding. Earthquake:An earthquake is the vibration of the Earth produced by a rapid release of energy. Smaller released a similar energy of lightning, but the most powerful could equal the annual consumption of electricity in the US and far surpass the most powerful atomic explosions. Lava: When the volcanic eruption occurs, the magma comes out in the form of lava. Drougth: Droughts have plagued every continent and have been present throughout the history of mankind.
