Natural disasters occur due to natural forces beyond human control. Examples include earthquakes, tsunamis, floods, and volcanic eruptions. They often result in large-scale destruction and loss of life. Manmade disasters, on the other hand, are caused by human negligence or harmful actions such as oil spills, industrial accidents, wars, and deforestation. These can often be prevented with proper precautions, unlike natural disasters. The difference lies in their origin: nature-driven versus human-driven.