Many years ago different natural disasters happened on our planet. People suffered from hurricanes, tornadoes, floods, droughts and volcano eruptions destroyed cities, carried away houses and even farm animals. People lost their homes. Many of them died during terrible earthquakes and hurricanes.Nowadays scientists try to predict these catastrophes. Emergency workers together with the police and the army help people in difficult situations.Hopefully in the future researchers wijj learn more about nature and invent new machines and devices which will help to predict all possible dangers. Peple will have a better chance to protect themselves.