Disaster is the calamity which can result in destruction and loss.
1. Drought- It is the condition when there is no rainfall for a very long time, sometimes months or even years in a region. This results in the shortage of water in a particular area.
2. Earthquake- It is a natural disaster which occurs when the earth's surface shakes.
3. Flood- When heavy rainfall occurs, the water holding capacity of the reservoirs surpasses a limit. So, water is led out of them in excess. This leads to flood.