This document provides an overview of various natural disasters including cyclones, earthquakes, tornados, volcanic eruptions, tsunamis, floods, wildfires, droughts, avalanches, and landslides. It describes each type of disaster and provides one or two illustrative examples, such as the deadliest tornado occurring in Bangladesh in 1989 or the largest flood being the Yellow River flood in China in 1887. The document aims to educate about different natural disasters and their impacts.